6989598 has 96 divisors (see below), whose sum is σ = 19848960. Its totient is φ = 1771200.

The previous prime is 6989581. The next prime is 6989599. The reversal of 6989598 is 8959896.

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

Its product of digits (1399680) is a multiple of the sum of its prime divisors (64).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6989599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 170458 + ... + 170498.

It is an arithmetic number, because the mean of its divisors is an integer number (206760).

Almost surely, 2^6989598 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6989598, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9924480).

6989598 is an abundant number, since it is smaller than the sum of its proper divisors (12859362).

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

6989598 is a wasteful number, since it uses less digits than its factorization.

6989598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 64 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 54.

The square root of 6989598 is about 2643.7847870052. The cubic root of 6989598 is about 191.1983174458.

It can be divided in two parts, 698 and 9598, that added together give a triangular number (10296 = T₁₄₃).

The spelling of 6989598 in words is "six million, nine hundred eighty-nine thousand, five hundred ninety-eight".