74727772 has 12 divisors (see below), whose sum is σ = 149455600. Its totient is φ = 32026176.

The previous prime is 74727749. The next prime is 74727781. The reversal of 74727772 is 27772747.

74727772 is nontrivially palindromic in base 8.

74727772 is an admirable number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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, 1334397 + ... + 1334452.

Almost surely, 2^74727772 is an apocalyptic number.

It is an amenable number.

74727772 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74727772 is a wasteful number, since it uses less digits than its factorization.

74727772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2668860 (or 2668858 counting only the distinct ones).

The product of its digits is 268912, while the sum is 43.

The square root of 74727772 is about 8644.5226588864. The cubic root of 74727772 is about 421.2054785399.

The spelling of 74727772 in words is "seventy-four million, seven hundred twenty-seven thousand, seven hundred seventy-two".