23477969 has 4 divisors (see below), whose sum is σ = 24859044. Its totient is φ = 22096896.

The previous prime is 23477959. The next prime is 23477981. The reversal of 23477969 is 96977432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12673600 + 10804369 = 3560^2 + 3287^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23477969 is a prime.

It is a super-2 number, since 2×23477969² = 1102430056729922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23477959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 690512 + ... + 690545.

It is an arithmetic number, because the mean of its divisors is an integer number (6214761).

Almost surely, 2^23477969 is an apocalyptic number.

It is an amenable number.

23477969 is a deficient number, since it is larger than the sum of its proper divisors (1381075).

23477969 is a wasteful number, since it uses less digits than its factorization.

23477969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381074.

The product of its digits is 571536, while the sum is 47.

The square root of 23477969 is about 4845.4070004490. The cubic root of 23477969 is about 286.3431786053.

The spelling of 23477969 in words is "twenty-three million, four hundred seventy-seven thousand, nine hundred sixty-nine".