64503938 has 8 divisors (see below), whose sum is σ = 96790032. Its totient is φ = 32240596.

The previous prime is 64503931. The next prime is 64503941. The reversal of 64503938 is 83930546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64503931) 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, 7781 + ... + 13767.

It is an arithmetic number, because the mean of its divisors is an integer number (12098754).

Almost surely, 2^64503938 is an apocalyptic number.

64503938 is a deficient number, since it is larger than the sum of its proper divisors (32286094).

64503938 is a wasteful number, since it uses less digits than its factorization.

64503938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11376.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 64503938 is about 8031.4343675336. The cubic root of 64503938 is about 401.0471272526.

The spelling of 64503938 in words is "sixty-four million, five hundred three thousand, nine hundred thirty-eight".