74740573 has 4 divisors (see below), whose sum is σ = 75402108. Its totient is φ = 74079040.

The previous prime is 74740559. The next prime is 74740591. The reversal of 74740573 is 37504747.

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 4549689 + 70190884 = 2133^2 + 8378^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74740573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74740513) 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, 330598 + ... + 330823.

It is an arithmetic number, because the mean of its divisors is an integer number (18850527).

Almost surely, 2^74740573 is an apocalyptic number.

It is an amenable number.

74740573 is a deficient number, since it is larger than the sum of its proper divisors (661535).

74740573 is a wasteful number, since it uses less digits than its factorization.

74740573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661534.

The product of its (nonzero) digits is 82320, while the sum is 37.

The square root of 74740573 is about 8645.2630382193. The cubic root of 74740573 is about 421.2295282487.

The spelling of 74740573 in words is "seventy-four million, seven hundred forty thousand, five hundred seventy-three".