74116557 has 12 divisors (see below), whose sum is σ = 111712224. Its totient is φ = 47262600.

The previous prime is 74116543. The next prime is 74116573. The reversal of 74116557 is 75561147.

It is a de Polignac number, because none of the positive numbers 2^k-74116557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74116507) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178819 + ... + 179232.

It is an arithmetic number, because the mean of its divisors is an integer number (9309352).

Almost surely, 2^74116557 is an apocalyptic number.

It is an amenable number.

74116557 is a deficient number, since it is larger than the sum of its proper divisors (37595667).

74116557 is a wasteful number, since it uses less digits than its factorization.

74116557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358080 (or 358077 counting only the distinct ones).

The product of its digits is 29400, while the sum is 36.

The square root of 74116557 is about 8609.0973394427. The cubic root of 74116557 is about 420.0539556533.

The spelling of 74116557 in words is "seventy-four million, one hundred sixteen thousand, five hundred fifty-seven".