26922681 has 12 divisors (see below), whose sum is σ = 39716352. Its totient is φ = 17566296.

The previous prime is 26922659. The next prime is 26922683. The reversal of 26922681 is 18622962.

It is a happy number.

It is not a de Polignac number, because 26922681 - 2⁶ = 26922617 is a prime.

It is a super-2 number, since 2×26922681² = 1449661504455522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26922683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31401 + ... + 32246.

It is an arithmetic number, because the mean of its divisors is an integer number (3309696).

Almost surely, 2^26922681 is an apocalyptic number.

It is an amenable number.

26922681 is a deficient number, since it is larger than the sum of its proper divisors (12793671).

26922681 is a wasteful number, since it uses less digits than its factorization.

26922681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63700 (or 63697 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 26922681 is about 5188.7070643851. The cubic root of 26922681 is about 299.7133595447.

The spelling of 26922681 in words is "twenty-six million, nine hundred twenty-two thousand, six hundred eighty-one".