74902473 has 12 divisors (see below), whose sum is σ = 108292548. Its totient is φ = 49888800.

The previous prime is 74902469. The next prime is 74902481. The reversal of 74902473 is 37420947.

It can be written as a sum of positive squares in 2 ways, for example, as 304704 + 74597769 = 552^2 + 8637^2 .

It is not a de Polignac number, because 74902473 - 2² = 74902469 is a prime.

It is a super-2 number, since 2×74902473² = 11220760923031458, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (74902433) 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, 8511 + ... + 14907.

It is an arithmetic number, because the mean of its divisors is an integer number (9024379).

Almost surely, 2^74902473 is an apocalyptic number.

It is an amenable number.

74902473 is a deficient number, since it is larger than the sum of its proper divisors (33390075).

74902473 is a wasteful number, since it uses less digits than its factorization.

74902473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7704 (or 7701 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 74902473 is about 8654.6214821909. The cubic root of 74902473 is about 421.5334590107.

The spelling of 74902473 in words is "seventy-four million, nine hundred two thousand, four hundred seventy-three".