26690097 has 16 divisors (see below), whose sum is σ = 42439680. Its totient is φ = 14588112.

The previous prime is 26690093. The next prime is 26690099. The reversal of 26690097 is 79009662.

It is not a de Polignac number, because 26690097 - 2² = 26690093 is a prime.

It is a super-2 number, since 2×26690097² = 1424722555738818, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26690093) 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 15 ways as a sum of consecutive naturals, for example, 27147 + ... + 28112.

It is an arithmetic number, because the mean of its divisors is an integer number (2652480).

Almost surely, 2^26690097 is an apocalyptic number.

It is an amenable number.

26690097 is a deficient number, since it is larger than the sum of its proper divisors (15749583).

26690097 is a wasteful number, since it uses less digits than its factorization.

26690097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55292.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 26690097 is about 5166.2459291056. The cubic root of 26690097 is about 298.8477914950.

The spelling of 26690097 in words is "twenty-six million, six hundred ninety thousand, ninety-seven".