64363970 has 32 divisors (see below), whose sum is σ = 127339776. Its totient is φ = 23228800.

The previous prime is 64363969. The next prime is 64363987. The reversal of 64363970 is 7936346.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12935 + ... + 17205.

It is an arithmetic number, because the mean of its divisors is an integer number (3979368).

Almost surely, 2^64363970 is an apocalyptic number.

64363970 is a deficient number, since it is larger than the sum of its proper divisors (62975806).

64363970 is a wasteful number, since it uses less digits than its factorization.

64363970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4426.

The product of its (nonzero) digits is 81648, while the sum is 38.

The square root of 64363970 is about 8022.7158743159. The cubic root of 64363970 is about 400.7568379211.

The spelling of 64363970 in words is "sixty-four million, three hundred sixty-three thousand, nine hundred seventy".