74891359 has 4 divisors (see below), whose sum is σ = 74908800. Its totient is φ = 74873920.

The previous prime is 74891353. The next prime is 74891363. The reversal of 74891359 is 95319847.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 74891359 - 2⁷ = 74891231 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 (74891353) 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, 2754 + ... + 12544.

It is an arithmetic number, because the mean of its divisors is an integer number (18727200).

Almost surely, 2^74891359 is an apocalyptic number.

74891359 is a deficient number, since it is larger than the sum of its proper divisors (17441).

74891359 is an equidigital number, since it uses as much as digits as its factorization.

74891359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17440.

The product of its digits is 272160, while the sum is 46.

The square root of 74891359 is about 8653.9793736754. The cubic root of 74891359 is about 421.5126089888.

The spelling of 74891359 in words is "seventy-four million, eight hundred ninety-one thousand, three hundred fifty-nine".