5999994 has 160 divisors (see below), whose sum is σ = 18539136. Its totient is φ = 1399680.

The previous prime is 5999993. The next prime is 6000011. The reversal of 5999994 is 4999995.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5999994.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5999993) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 162144 + ... + 162180.

Almost surely, 2^5999994 is an apocalyptic number.

5999994 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 5999994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9269568).

5999994 is an abundant number, since it is smaller than the sum of its proper divisors (12539142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5999994 is a wasteful number, since it uses less digits than its factorization.

5999994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 73 counting only the distinct ones).

The product of its digits is 1180980, while the sum is 54.

The square root of 5999994 is about 2449.4885180380. The cubic root of 5999994 is about 181.7119987125.

5999994 divided by its sum of digits (54) gives a palindrome (111111).

Subtracting from 5999994 its reverse (4999995), we obtain a palindrome (999999).

It can be divided in two parts, 5 and 999994, that added together give a palindrome (999999).

The spelling of 5999994 in words is "five million, nine hundred ninety-nine thousand, nine hundred ninety-four".