74547564 has 96 divisors (see below), whose sum is σ = 225415680. Its totient is φ = 18620928.

The previous prime is 74547511. The next prime is 74547587. The reversal of 74547564 is 46574547.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18952 + ... + 22544.

It is an arithmetic number, because the mean of its divisors is an integer number (2348080).

Almost surely, 2^74547564 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74547564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112707840).

74547564 is an abundant number, since it is smaller than the sum of its proper divisors (150868116).

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

74547564 is a wasteful number, since it uses less digits than its factorization.

74547564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3639 (or 3637 counting only the distinct ones).

The product of its digits is 470400, while the sum is 42.

The square root of 74547564 is about 8634.0931197202. The cubic root of 74547564 is about 420.8666232877.

The spelling of 74547564 in words is "seventy-four million, five hundred forty-seven thousand, five hundred sixty-four".