75617616 has 40 divisors (see below), whose sum is σ = 202085280. Its totient is φ = 24336256.

The previous prime is 75617609. The next prime is 75617617. The reversal of 75617616 is 61671657.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75617617) 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, 25770 + ... + 28553.

It is an arithmetic number, because the mean of its divisors is an integer number (5052132).

Almost surely, 2^75617616 is an apocalyptic number.

It is an amenable number.

75617616 is an abundant number, since it is smaller than the sum of its proper divisors (126467664).

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

75617616 is a wasteful number, since it uses less digits than its factorization.

75617616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54363 (or 54357 counting only the distinct ones).

The product of its digits is 52920, while the sum is 39.

The square root of 75617616 is about 8695.8390049494. The cubic root of 75617616 is about 422.8707640226.

The spelling of 75617616 in words is "seventy-five million, six hundred seventeen thousand, six hundred sixteen".