65223904 has 12 divisors (see below), whose sum is σ = 128409624. Its totient is φ = 32611936.

The previous prime is 65223887. The next prime is 65223911. The reversal of 65223904 is 40932256.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1019092 + ... + 1019155.

It is an arithmetic number, because the mean of its divisors is an integer number (10700802).

Almost surely, 2^65223904 is an apocalyptic number.

It is an amenable number.

65223904 is a deficient number, since it is larger than the sum of its proper divisors (63185720).

65223904 is a wasteful number, since it uses less digits than its factorization.

65223904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2038257 (or 2038249 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 65223904 is about 8076.1317473157. The cubic root of 65223904 is about 402.5337168108.

The spelling of 65223904 in words is "sixty-five million, two hundred twenty-three thousand, nine hundred four".