26623961 has 16 divisors (see below), whose sum is σ = 32909184. Its totient is φ = 20974464.

The previous prime is 26623957. The next prime is 26623963. The reversal of 26623961 is 16932662.

It is not a de Polignac number, because 26623961 - 2² = 26623957 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26623963) 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, 27461 + ... + 28413.

It is an arithmetic number, because the mean of its divisors is an integer number (2056824).

Almost surely, 2^26623961 is an apocalyptic number.

It is an amenable number.

26623961 is a deficient number, since it is larger than the sum of its proper divisors (6285223).

26623961 is a wasteful number, since it uses less digits than its factorization.

26623961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280.

The product of its digits is 23328, while the sum is 35.

The square root of 26623961 is about 5159.8411797264. The cubic root of 26623961 is about 298.6007467441.

The spelling of 26623961 in words is "twenty-six million, six hundred twenty-three thousand, nine hundred sixty-one".