74738471 has 4 divisors (see below), whose sum is σ = 74829672. Its totient is φ = 74647272.

The previous prime is 74738459. The next prime is 74738509. The reversal of 74738471 is 17483747.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74738471 - 2²² = 70544167 is a prime.

It is a super-3 number, since 3×74738471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74738401) 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, 44360 + ... + 46013.

It is an arithmetic number, because the mean of its divisors is an integer number (18707418).

Almost surely, 2^74738471 is an apocalyptic number.

74738471 is a deficient number, since it is larger than the sum of its proper divisors (91201).

74738471 is an equidigital number, since it uses as much as digits as its factorization.

74738471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91200.

The product of its digits is 131712, while the sum is 41.

The square root of 74738471 is about 8645.1414678998. The cubic root of 74738471 is about 421.2255793326.

The spelling of 74738471 in words is "seventy-four million, seven hundred thirty-eight thousand, four hundred seventy-one".