23071564 has 24 divisors (see below), whose sum is σ = 42656768. Its totient is φ = 10901520.

The previous prime is 23071541. The next prime is 23071571. The reversal of 23071564 is 46517032.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3169 + ... + 7495.

Almost surely, 2^23071564 is an apocalyptic number.

It is an amenable number.

23071564 is a deficient number, since it is larger than the sum of its proper divisors (19585204).

23071564 is a wasteful number, since it uses less digits than its factorization.

23071564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4405 (or 4403 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 23071564 is about 4803.2867913544. The cubic root of 23071564 is about 284.6813469410.

Adding to 23071564 its reverse (46517032), we get a palindrome (69588596).

The spelling of 23071564 in words is "twenty-three million, seventy-one thousand, five hundred sixty-four".