74474771 has 8 divisors (see below), whose sum is σ = 85519104. Its totient is φ = 63531720.

The previous prime is 74474767. The next prime is 74474779. The reversal of 74474771 is 17747447.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74474771 - 2² = 74474767 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74474779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23735 + ... + 26688.

It is an arithmetic number, because the mean of its divisors is an integer number (10689888).

Almost surely, 2^74474771 is an apocalyptic number.

74474771 is a deficient number, since it is larger than the sum of its proper divisors (11044333).

74474771 is a wasteful number, since it uses less digits than its factorization.

74474771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50641.

The product of its digits is 153664, while the sum is 41.

The square root of 74474771 is about 8629.8766503352. The cubic root of 74474771 is about 420.7295916640.

The spelling of 74474771 in words is "seventy-four million, four hundred seventy-four thousand, seven hundred seventy-one".