23261805 has 24 divisors (see below), whose sum is σ = 46081152. Its totient is φ = 10633824.

The previous prime is 23261779. The next prime is 23261813. The reversal of 23261805 is 50816232.

It is not a de Polignac number, because 23261805 - 2⁸ = 23261549 is a prime.

It is a super-2 number, since 2×23261805² = 1082223143716050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36609 + ... + 37238.

It is an arithmetic number, because the mean of its divisors is an integer number (1920048).

Almost surely, 2^23261805 is an apocalyptic number.

It is an amenable number.

23261805 is a deficient number, since it is larger than the sum of its proper divisors (22819347).

23261805 is a wasteful number, since it uses less digits than its factorization.

23261805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73865 (or 73862 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 23261805 is about 4823.0493466271. The cubic root of 23261805 is about 285.4616709422.

The spelling of 23261805 in words is "twenty-three million, two hundred sixty-one thousand, eight hundred five".