75012887 has 4 divisors (see below), whose sum is σ = 75122136. Its totient is φ = 74903640.

The previous prime is 75012877. The next prime is 75012919. The reversal of 75012887 is 78821057.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 75012887 - 2⁴ = 75012871 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75012887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75012877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53588 + ... + 54969.

It is an arithmetic number, because the mean of its divisors is an integer number (18780534).

Almost surely, 2^75012887 is an apocalyptic number.

75012887 is a deficient number, since it is larger than the sum of its proper divisors (109249).

75012887 is a wasteful number, since it uses less digits than its factorization.

75012887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109248.

The product of its (nonzero) digits is 31360, while the sum is 38.

The square root of 75012887 is about 8660.9980371779. The cubic root of 75012887 is about 421.7404853048.

The spelling of 75012887 in words is "seventy-five million, twelve thousand, eight hundred eighty-seven".