26697920 has 28 divisors (see below), whose sum is σ = 63575184. Its totient is φ = 10679040.

The previous prime is 26697911. The next prime is 26697949. The reversal of 26697920 is 2979662.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41396 + ... + 42035.

Almost surely, 2^26697920 is an apocalyptic number.

26697920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26697920 is an abundant number, since it is smaller than the sum of its proper divisors (36877264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26697920 is an equidigital number, since it uses as much as digits as its factorization.

26697920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83448 (or 83438 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 26697920 is about 5167.0029998056. The cubic root of 26697920 is about 298.8769865668.

The spelling of 26697920 in words is "twenty-six million, six hundred ninety-seven thousand, nine hundred twenty".