75432904 has 8 divisors (see below), whose sum is σ = 141436710. Its totient is φ = 37716448.

The previous prime is 75432901. The next prime is 75432943. The reversal of 75432904 is 40923457.

It can be written as a sum of positive squares in only one way, i.e., 54730404 + 20702500 = 7398^2 + 4550^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 75432904.

It is not an unprimeable number, because it can be changed into a prime (75432901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4714549 + ... + 4714564.

Almost surely, 2^75432904 is an apocalyptic number.

It is an amenable number.

75432904 is a deficient number, since it is larger than the sum of its proper divisors (66003806).

75432904 is a wasteful number, since it uses less digits than its factorization.

75432904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9429119 (or 9429115 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 75432904 is about 8685.2117993748. The cubic root of 75432904 is about 422.5261662307.

The spelling of 75432904 in words is "seventy-five million, four hundred thirty-two thousand, nine hundred four".