75664964 has 6 divisors (see below), whose sum is σ = 132413694. Its totient is φ = 37832480.

The previous prime is 75664957. The next prime is 75664969. The reversal of 75664964 is 46946657.

It can be written as a sum of positive squares in only one way, i.e., 42510400 + 33154564 = 6520^2 + 5758^2 .

It is not an unprimeable number, because it can be changed into a prime (75664969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9458117 + ... + 9458124.

It is an arithmetic number, because the mean of its divisors is an integer number (22068949).

Almost surely, 2^75664964 is an apocalyptic number.

It is an amenable number.

75664964 is a deficient number, since it is larger than the sum of its proper divisors (56748730).

75664964 is a wasteful number, since it uses less digits than its factorization.

75664964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18916245 (or 18916243 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 47.

The square root of 75664964 is about 8698.5610304234. The cubic root of 75664964 is about 422.9590058394.

The spelling of 75664964 in words is "seventy-five million, six hundred sixty-four thousand, nine hundred sixty-four".