13957398 has 48 divisors (see below), whose sum is σ = 37224096. Its totient is φ = 3680640.

The previous prime is 13957387. The next prime is 13957417. The reversal of 13957398 is 89375931.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2623 + ... + 5898.

It is an arithmetic number, because the mean of its divisors is an integer number (775502).

Almost surely, 2^13957398 is an apocalyptic number.

13957398 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13957398 is an abundant number, since it is smaller than the sum of its proper divisors (23266698).

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

13957398 is a wasteful number, since it uses less digits than its factorization.

13957398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8549 (or 8546 counting only the distinct ones).

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

The square root of 13957398 is about 3735.9601175601. The cubic root of 13957398 is about 240.7695092610.

The spelling of 13957398 in words is "thirteen million, nine hundred fifty-seven thousand, three hundred ninety-eight".