26097957 has 24 divisors (see below), whose sum is σ = 39355680. Its totient is φ = 17282160.

The previous prime is 26097949. The next prime is 26097959. The reversal of 26097957 is 75979062.

It is not a de Polignac number, because 26097957 - 2³ = 26097949 is a prime.

It is a super-2 number, since 2×26097957² = 1362206719147698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26097959) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51019 + ... + 51527.

It is an arithmetic number, because the mean of its divisors is an integer number (1639820).

Almost surely, 2^26097957 is an apocalyptic number.

26097957 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

26097957 is a deficient number, since it is larger than the sum of its proper divisors (13257723).

26097957 is an equidigital number, since it uses as much as digits as its factorization.

26097957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735 (or 723 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 26097957 is about 5108.6159573802. The cubic root of 26097957 is about 296.6211883042.

The spelling of 26097957 in words is "twenty-six million, ninety-seven thousand, nine hundred fifty-seven".