64363976 has 16 divisors (see below), whose sum is σ = 121033500. Its totient is φ = 32088384.

The previous prime is 64363969. The next prime is 64363987. The reversal of 64363976 is 67936346.

It can be written as a sum of positive squares in 2 ways, for example, as 60062500 + 4301476 = 7750^2 + 2074^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8735 + ... + 14318.

Almost surely, 2^64363976 is an apocalyptic number.

It is an amenable number.

64363976 is a deficient number, since it is larger than the sum of its proper divisors (56669524).

64363976 is a wasteful number, since it uses less digits than its factorization.

64363976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23408 (or 23404 counting only the distinct ones).

The product of its digits is 489888, while the sum is 44.

The square root of 64363976 is about 8022.7162482541. The cubic root of 64363976 is about 400.7568503739.

The spelling of 64363976 in words is "sixty-four million, three hundred sixty-three thousand, nine hundred seventy-six".