23477661 has 8 divisors (see below), whose sum is σ = 34781760. Its totient is φ = 15651756.

The previous prime is 23477653. The next prime is 23477681. The reversal of 23477661 is 16677432.

It is not a de Polignac number, because 23477661 - 2³ = 23477653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23477621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434745 + ... + 434798.

It is an arithmetic number, because the mean of its divisors is an integer number (4347720).

Almost surely, 2^23477661 is an apocalyptic number.

It is an amenable number.

23477661 is a deficient number, since it is larger than the sum of its proper divisors (11304099).

23477661 is an equidigital number, since it uses as much as digits as its factorization.

23477661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869552 (or 869546 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 23477661 is about 4845.3752176689. The cubic root of 23477661 is about 286.3419264515.

The spelling of 23477661 in words is "twenty-three million, four hundred seventy-seven thousand, six hundred sixty-one".