64064372 has 6 divisors (see below), whose sum is σ = 112112658. Its totient is φ = 32032184.

The previous prime is 64064369. The next prime is 64064387. The reversal of 64064372 is 27346046.

It can be written as a sum of positive squares in only one way, i.e., 43507216 + 20557156 = 6596^2 + 4534^2 .

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, 8008043 + ... + 8008050.

It is an arithmetic number, because the mean of its divisors is an integer number (18685443).

Almost surely, 2^64064372 is an apocalyptic number.

It is an amenable number.

64064372 is a deficient number, since it is larger than the sum of its proper divisors (48048286).

64064372 is a wasteful number, since it uses less digits than its factorization.

64064372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16016097 (or 16016095 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 64064372 is about 8004.0222388497. The cubic root of 64064372 is about 400.1340633958.

The spelling of 64064372 in words is "sixty-four million, sixty-four thousand, three hundred seventy-two".