75717872 has 20 divisors (see below), whose sum is σ = 151436736. Its totient is φ = 36637440.

The previous prime is 75717871. The next prime is 75717877. The reversal of 75717872 is 27871757.

75717872 is an admirable number.

It is a super-2 number, since 2×75717872² = 11466392280416768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75717871) 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, 75833 + ... + 76824.

Almost surely, 2^75717872 is an apocalyptic number.

It is an amenable number.

75717872 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75717872 is a wasteful number, since it uses less digits than its factorization.

75717872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152696 (or 152690 counting only the distinct ones).

The product of its digits is 192080, while the sum is 44.

The square root of 75717872 is about 8701.6016916428. The cubic root of 75717872 is about 423.0575662125.

The spelling of 75717872 in words is "seventy-five million, seven hundred seventeen thousand, eight hundred seventy-two".