26697897 has 16 divisors (see below), whose sum is σ = 39672000. Its totient is φ = 17744832.

The previous prime is 26697877. The next prime is 26697899. The reversal of 26697897 is 79879662.

It is not a de Polignac number, because 26697897 - 2¹² = 26693801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26697899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8929 + ... + 11537.

It is an arithmetic number, because the mean of its divisors is an integer number (2479500).

Almost surely, 2^26697897 is an apocalyptic number.

26697897 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

26697897 is a deficient number, since it is larger than the sum of its proper divisors (12974103).

26697897 is a wasteful number, since it uses less digits than its factorization.

26697897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2997 (or 2991 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 26697897 is about 5167.0007741435. Note that the first 3 decimals coincide. The cubic root of 26697897 is about 298.8769007403.

The spelling of 26697897 in words is "twenty-six million, six hundred ninety-seven thousand, eight hundred ninety-seven".