13597398 has 24 divisors (see below), whose sum is σ = 29566368. Its totient is φ = 4516272.

The previous prime is 13597391. The next prime is 13597411. The reversal of 13597398 is 89379531.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13597391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4515 + ... + 6897.

It is an arithmetic number, because the mean of its divisors is an integer number (1231932).

Almost surely, 2^13597398 is an apocalyptic number.

13597398 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13597398 is an abundant number, since it is smaller than the sum of its proper divisors (15968970).

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

13597398 is a wasteful number, since it uses less digits than its factorization.

13597398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2708 (or 2705 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 13597398 is about 3687.4649828846. The cubic root of 13597398 is about 238.6814146534.

The spelling of 13597398 in words is "thirteen million, five hundred ninety-seven thousand, three hundred ninety-eight".