6459894 has 48 divisors (see below), whose sum is σ = 16144128. Its totient is φ = 1828656.

The previous prime is 6459883. The next prime is 6459899. The reversal of 6459894 is 4989546.

It is a happy number.

Its product of digits (311040) is a multiple of the sum of its prime divisors (486).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6459899) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20889 + ... + 21195.

It is an arithmetic number, because the mean of its divisors is an integer number (336336).

Almost surely, 2^6459894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6459894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8072064).

6459894 is an abundant number, since it is smaller than the sum of its proper divisors (9684234).

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

6459894 is a wasteful number, since it uses less digits than its factorization.

6459894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 486 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 6459894 is about 2541.6321527711. The cubic root of 6459894 is about 186.2409295464.

The spelling of 6459894 in words is "six million, four hundred fifty-nine thousand, eight hundred ninety-four".