26938257 has 32 divisors (see below), whose sum is σ = 39726720. Its totient is φ = 16174080.

The previous prime is 26938243. The next prime is 26938259. The reversal of 26938257 is 75283962.

26938257 is nontrivially palindromic in base 16.

It is not a de Polignac number, because 26938257 - 2⁶ = 26938193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26938259) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111657 + ... + 111897.

It is an arithmetic number, because the mean of its divisors is an integer number (1241460).

Almost surely, 2^26938257 is an apocalyptic number.

It is an amenable number.

26938257 is a deficient number, since it is larger than the sum of its proper divisors (12788463).

26938257 is a wasteful number, since it uses less digits than its factorization.

26938257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353.

The product of its digits is 181440, while the sum is 42.

The square root of 26938257 is about 5190.2077993082. The cubic root of 26938257 is about 299.7711476887.

The spelling of 26938257 in words is "twenty-six million, nine hundred thirty-eight thousand, two hundred fifty-seven".