13802257 has 8 divisors (see below), whose sum is σ = 15800832. Its totient is φ = 11810400.

The previous prime is 13802237. The next prime is 13802263. The reversal of 13802257 is 75220831.

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

It is a de Polignac number, because none of the positive numbers 2^k-13802257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13802237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4032 + ... + 6622.

It is an arithmetic number, because the mean of its divisors is an integer number (1975104).

Almost surely, 2^13802257 is an apocalyptic number.

It is an amenable number.

13802257 is a deficient number, since it is larger than the sum of its proper divisors (1998575).

13802257 is an equidigital number, since it uses as much as digits as its factorization.

13802257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3359.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 13802257 is about 3715.1388937697. The cubic root of 13802257 is about 239.8741064270.

The spelling of 13802257 in words is "thirteen million, eight hundred two thousand, two hundred fifty-seven".