77224132 has 24 divisors (see below), whose sum is σ = 150625440. Its totient is φ = 34427520.

The previous prime is 77224123. The next prime is 77224141. The reversal of 77224132 is 23142277.

It is an interprime number because it is at equal distance from previous prime (77224123) and next prime (77224141).

It is a self number, because there is not a number n which added to its sum of digits gives 77224132.

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 7 ways as a sum of consecutive naturals, for example, 28594 + ... + 31177.

It is an arithmetic number, because the mean of its divisors is an integer number (6276060).

Almost surely, 2^77224132 is an apocalyptic number.

It is an amenable number.

77224132 is a deficient number, since it is larger than the sum of its proper divisors (73401308).

77224132 is a wasteful number, since it uses less digits than its factorization.

77224132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59811 (or 59809 counting only the distinct ones).

The product of its digits is 4704, while the sum is 28.

The square root of 77224132 is about 8787.7262133046. The cubic root of 77224132 is about 425.8444699565.

The spelling of 77224132 in words is "seventy-seven million, two hundred twenty-four thousand, one hundred thirty-two".