13997357 has 8 divisors (see below), whose sum is σ = 16073760. Its totient is φ = 12054960.

The previous prime is 13997351. The next prime is 13997371. The reversal of 13997357 is 75379931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13997357 - 2¹⁴ = 13980973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13997351) 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 7 ways as a sum of consecutive naturals, for example, 33278 + ... + 33695.

It is an arithmetic number, because the mean of its divisors is an integer number (2009220).

Almost surely, 2^13997357 is an apocalyptic number.

It is an amenable number.

13997357 is a deficient number, since it is larger than the sum of its proper divisors (2076403).

13997357 is a wasteful number, since it uses less digits than its factorization.

13997357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67003.

The product of its digits is 178605, while the sum is 44.

The square root of 13997357 is about 3741.3041843721. The cubic root of 13997357 is about 240.9990587820. Note that the first 3 decimals are identical.

The spelling of 13997357 in words is "thirteen million, nine hundred ninety-seven thousand, three hundred fifty-seven".