23477409 has 6 divisors (see below), whose sum is σ = 33911826. Its totient is φ = 15651600.

The previous prime is 23477387. The next prime is 23477413. The reversal of 23477409 is 90477432.

It can be written as a sum of positive squares in only one way, i.e., 15776784 + 7700625 = 3972^2 + 2775^2 .

It is not a de Polignac number, because 23477409 - 2¹³ = 23469217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23477429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1304292 + ... + 1304309.

It is an arithmetic number, because the mean of its divisors is an integer number (5651971).

Almost surely, 2^23477409 is an apocalyptic number.

It is an amenable number.

23477409 is a deficient number, since it is larger than the sum of its proper divisors (10434417).

23477409 is a wasteful number, since it uses less digits than its factorization.

23477409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2608607 (or 2608604 counting only the distinct ones).

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

The square root of 23477409 is about 4845.3492134211. The cubic root of 23477409 is about 286.3409019538.

The spelling of 23477409 in words is "twenty-three million, four hundred seventy-seven thousand, four hundred nine".