74791172 has 12 divisors (see below), whose sum is σ = 131120976. Its totient is φ = 37328040.

The previous prime is 74791159. The next prime is 74791183. The reversal of 74791172 is 27119747.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 14354 + ... + 18857.

It is an arithmetic number, because the mean of its divisors is an integer number (10926748).

Almost surely, 2^74791172 is an apocalyptic number.

It is an amenable number.

74791172 is a deficient number, since it is larger than the sum of its proper divisors (56329804).

74791172 is a wasteful number, since it uses less digits than its factorization.

74791172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33778 (or 33776 counting only the distinct ones).

The product of its digits is 24696, while the sum is 38.

The square root of 74791172 is about 8648.1889433569. The cubic root of 74791172 is about 421.3245635782.

It can be divided in two parts, 747 and 91172, that added together give a palindrome (91919).

The spelling of 74791172 in words is "seventy-four million, seven hundred ninety-one thousand, one hundred seventy-two".