74528473 has 4 divisors (see below), whose sum is σ = 74547108. Its totient is φ = 74509840.

The previous prime is 74528453. The next prime is 74528477. The reversal of 74528473 is 37482547.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24571849 + 49956624 = 4957^2 + 7068^2 .

It is a cyclic number.

It is not a de Polignac number, because 74528473 - 2²⁵ = 40974041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74528477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 598 + ... + 12223.

It is an arithmetic number, because the mean of its divisors is an integer number (18636777).

Almost surely, 2^74528473 is an apocalyptic number.

It is an amenable number.

74528473 is a deficient number, since it is larger than the sum of its proper divisors (18635).

74528473 is a wasteful number, since it uses less digits than its factorization.

74528473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18634.

The product of its digits is 188160, while the sum is 40.

The square root of 74528473 is about 8632.9874898554. The cubic root of 74528473 is about 420.8306934274.

The spelling of 74528473 in words is "seventy-four million, five hundred twenty-eight thousand, four hundred seventy-three".