75768872 has 8 divisors (see below), whose sum is σ = 142066650. Its totient is φ = 37884432.

The previous prime is 75768871. The next prime is 75768899. The reversal of 75768872 is 27886757.

It can be written as a sum of positive squares in only one way, i.e., 74063236 + 1705636 = 8606^2 + 1306^2 .

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 75768872.

It is not an unprimeable number, because it can be changed into a prime (75768871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4735547 + ... + 4735562.

Almost surely, 2^75768872 is an apocalyptic number.

It is an amenable number.

75768872 is a deficient number, since it is larger than the sum of its proper divisors (66297778).

75768872 is a wasteful number, since it uses less digits than its factorization.

75768872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9471115 (or 9471111 counting only the distinct ones).

The product of its digits is 1317120, while the sum is 50.

The square root of 75768872 is about 8704.5316933193. The cubic root of 75768872 is about 423.1525287928.

The spelling of 75768872 in words is "seventy-five million, seven hundred sixty-eight thousand, eight hundred seventy-two".