74227081 has 4 divisors (see below), whose sum is σ = 74451664. Its totient is φ = 74002500.

The previous prime is 74227063. The next prime is 74227093. The reversal of 74227081 is 18072247.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 74227081 - 2²³ = 65838473 is a prime.

It is a super-2 number, since 2×74227081² = 11019319107561122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74227061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111795 + ... + 112456.

It is an arithmetic number, because the mean of its divisors is an integer number (18612916).

Almost surely, 2^74227081 is an apocalyptic number.

It is an amenable number.

74227081 is a deficient number, since it is larger than the sum of its proper divisors (224583).

74227081 is a wasteful number, since it uses less digits than its factorization.

74227081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224582.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 74227081 is about 8615.5139718998. The cubic root of 74227081 is about 420.2626493975.

The spelling of 74227081 in words is "seventy-four million, two hundred twenty-seven thousand, eighty-one".