64663224 has 16 divisors (see below), whose sum is σ = 161658120. Its totient is φ = 21554400.

The previous prime is 64663219. The next prime is 64663229. The reversal of 64663224 is 42236646.

It is an interprime number because it is at equal distance from previous prime (64663219) and next prime (64663229).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64663229) 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, 1347127 + ... + 1347174.

Almost surely, 2^64663224 is an apocalyptic number.

It is an amenable number.

64663224 is an abundant number, since it is smaller than the sum of its proper divisors (96994896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64663224 is a wasteful number, since it uses less digits than its factorization.

64663224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2694310 (or 2694306 counting only the distinct ones).

The product of its digits is 41472, while the sum is 33.

The square root of 64663224 is about 8041.3446636741. The cubic root of 64663224 is about 401.3769711039.

The spelling of 64663224 in words is "sixty-four million, six hundred sixty-three thousand, two hundred twenty-four".