23261487 has 16 divisors (see below), whose sum is σ = 32479488. Its totient is φ = 14780480.

The previous prime is 23261467. The next prime is 23261521. The reversal of 23261487 is 78416232.

It is a cyclic number.

It is not a de Polignac number, because 23261487 - 2¹⁶ = 23195951 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23261437) 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, 30187 + ... + 30947.

It is an arithmetic number, because the mean of its divisors is an integer number (2029968).

Almost surely, 2^23261487 is an apocalyptic number.

23261487 is a deficient number, since it is larger than the sum of its proper divisors (9218001).

23261487 is a wasteful number, since it uses less digits than its factorization.

23261487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230.

The product of its digits is 16128, while the sum is 33.

The square root of 23261487 is about 4823.0163798188. The cubic root of 23261487 is about 285.4603701371.

The spelling of 23261487 in words is "twenty-three million, two hundred sixty-one thousand, four hundred eighty-seven".