64377952 has 12 divisors (see below), whose sum is σ = 126744156. Its totient is φ = 32188960.

The previous prime is 64377931. The next prime is 64377959. The reversal of 64377952 is 25977346.

It is a junction number, because it is equal to n+sod(n) for n = 64377899 and 64377908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64377959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005874 + ... + 1005937.

It is an arithmetic number, because the mean of its divisors is an integer number (10562013).

Almost surely, 2^64377952 is an apocalyptic number.

It is an amenable number.

64377952 is a deficient number, since it is larger than the sum of its proper divisors (62366204).

64377952 is a wasteful number, since it uses less digits than its factorization.

64377952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011821 (or 2011813 counting only the distinct ones).

The product of its digits is 317520, while the sum is 43.

The square root of 64377952 is about 8023.5872276682. The cubic root of 64377952 is about 400.7858550684.

The spelling of 64377952 in words is "sixty-four million, three hundred seventy-seven thousand, nine hundred fifty-two".