77674472 has 16 divisors (see below), whose sum is σ = 148028100. Its totient is φ = 38200320.

The previous prime is 77674453. The next prime is 77674477. The reversal of 77674472 is 27447677.

It can be written as a sum of positive squares in 2 ways, for example, as 50779876 + 26894596 = 7126^2 + 5186^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (77674477) 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, 79097 + ... + 80072.

Almost surely, 2^77674472 is an apocalyptic number.

It is an amenable number.

77674472 is a deficient number, since it is larger than the sum of its proper divisors (70353628).

77674472 is a wasteful number, since it uses less digits than its factorization.

77674472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159236 (or 159232 counting only the distinct ones).

The product of its digits is 460992, while the sum is 44.

The square root of 77674472 is about 8813.3122037064. The cubic root of 77674472 is about 426.6706504619.

The spelling of 77674472 in words is "seventy-seven million, six hundred seventy-four thousand, four hundred seventy-two".