26090397 has 16 divisors (see below), whose sum is σ = 38772480. Its totient is φ = 17339616.

The previous prime is 26090369. The next prime is 26090399. The reversal of 26090397 is 79309062.

26090397 is a `hidden beast` number, since 260 + 9 + 0 + 397 = 666.

It is not a de Polignac number, because 26090397 - 2⁶ = 26090333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26090399) 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, 8593 + ... + 11225.

It is an arithmetic number, because the mean of its divisors is an integer number (2423280).

Almost surely, 2^26090397 is an apocalyptic number.

26090397 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

26090397 is a deficient number, since it is larger than the sum of its proper divisors (12682083).

26090397 is a wasteful number, since it uses less digits than its factorization.

26090397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3009 (or 3003 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 26090397 is about 5107.8759773511. The cubic root of 26090397 is about 296.5925440091.

The spelling of 26090397 in words is "twenty-six million, ninety thousand, three hundred ninety-seven".