64624023 has 12 divisors (see below), whose sum is σ = 93415608. Its totient is φ = 43050480.

The previous prime is 64624009. The next prime is 64624031. The reversal of 64624023 is 32042646.

It is not a de Polignac number, because 64624023 - 2⁵ = 64623991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64624223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21361 + ... + 24197.

It is an arithmetic number, because the mean of its divisors is an integer number (7784634).

Almost surely, 2^64624023 is an apocalyptic number.

64624023 is a deficient number, since it is larger than the sum of its proper divisors (28791585).

64624023 is a wasteful number, since it uses less digits than its factorization.

64624023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5374 (or 5371 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 64624023 is about 8038.9068286677. The cubic root of 64624023 is about 401.2958453454.

Adding to 64624023 its reverse (32042646), we get a palindrome (96666669).

The spelling of 64624023 in words is "sixty-four million, six hundred twenty-four thousand, twenty-three".