75172916 has 24 divisors (see below), whose sum is σ = 161911680. Its totient is φ = 29738592.

The previous prime is 75172913. The next prime is 75172919. The reversal of 75172916 is 61927157.

It is an interprime number because it is at equal distance from previous prime (75172913) and next prime (75172919).

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 75172916.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75172913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102896 + ... + 103623.

It is an arithmetic number, because the mean of its divisors is an integer number (6746320).

Almost surely, 2^75172916 is an apocalyptic number.

It is an amenable number.

75172916 is an abundant number, since it is smaller than the sum of its proper divisors (86738764).

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

75172916 is a wasteful number, since it uses less digits than its factorization.

75172916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206543 (or 206541 counting only the distinct ones).

The product of its digits is 26460, while the sum is 38.

The square root of 75172916 is about 8670.2316001362. The cubic root of 75172916 is about 422.0401794586.

The spelling of 75172916 in words is "seventy-five million, one hundred seventy-two thousand, nine hundred sixteen".