74289271 has 16 divisors (see below), whose sum is σ = 88200000. Its totient is φ = 61221888.

The previous prime is 74289263. The next prime is 74289283. The reversal of 74289271 is 17298247.

It is not a de Polignac number, because 74289271 - 2³ = 74289263 is a prime.

It is a super-2 number, since 2×74289271² = 11037791571422882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74289211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58855 + ... + 60103.

It is an arithmetic number, because the mean of its divisors is an integer number (5512500).

Almost surely, 2^74289271 is an apocalyptic number.

74289271 is a deficient number, since it is larger than the sum of its proper divisors (13910729).

74289271 is a wasteful number, since it uses less digits than its factorization.

74289271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578.

The product of its digits is 56448, while the sum is 40.

The square root of 74289271 is about 8619.1224031220. The cubic root of 74289271 is about 420.3799867985.

The spelling of 74289271 in words is "seventy-four million, two hundred eighty-nine thousand, two hundred seventy-one".