74889513 has 24 divisors (see below), whose sum is σ = 112432320. Its totient is φ = 47977440.

The previous prime is 74889511. The next prime is 74889523. The reversal of 74889513 is 31598847.

It is not a de Polignac number, because 74889513 - 2¹ = 74889511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74889511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68098 + ... + 69188.

It is an arithmetic number, because the mean of its divisors is an integer number (4684680).

Almost surely, 2^74889513 is an apocalyptic number.

It is an amenable number.

74889513 is a deficient number, since it is larger than the sum of its proper divisors (37542807).

74889513 is a wasteful number, since it uses less digits than its factorization.

74889513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389 (or 1386 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 74889513 is about 8653.8727168823. The cubic root of 74889513 is about 421.5091456668.

The spelling of 74889513 in words is "seventy-four million, eight hundred eighty-nine thousand, five hundred thirteen".