74993568 has 48 divisors (see below), whose sum is σ = 212004576. Its totient is φ = 23074560.

The previous prime is 74993563. The next prime is 74993573. The reversal of 74993568 is 86539947.

It is an interprime number because it is at equal distance from previous prime (74993563) and next prime (74993573).

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 74993568.

It is not an unprimeable number, because it can be changed into a prime (74993563) 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, 28798 + ... + 31293.

It is an arithmetic number, because the mean of its divisors is an integer number (4416762).

Almost surely, 2^74993568 is an apocalyptic number.

74993568 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

74993568 is an abundant number, since it is smaller than the sum of its proper divisors (137011008).

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

74993568 is a wasteful number, since it uses less digits than its factorization.

74993568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60117 (or 60109 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 51.

The square root of 74993568 is about 8659.8826781891. The cubic root of 74993568 is about 421.7042768420.

The spelling of 74993568 in words is "seventy-four million, nine hundred ninety-three thousand, five hundred sixty-eight".