77424312 has 48 divisors (see below), whose sum is σ = 225165960. Its totient is φ = 22120896.

The previous prime is 77424301. The next prime is 77424337. The reversal of 77424312 is 21342477.

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

It is a self number, because there is not a number n which added to its sum of digits gives 77424312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31743 + ... + 34094.

Almost surely, 2^77424312 is an apocalyptic number.

It is an amenable number.

77424312 is an abundant number, since it is smaller than the sum of its proper divisors (147741648).

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

77424312 is a wasteful number, since it uses less digits than its factorization.

77424312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65860 (or 65849 counting only the distinct ones).

The product of its digits is 9408, while the sum is 30.

The square root of 77424312 is about 8799.1085912154. The cubic root of 77424312 is about 426.2121097602.

Adding to 77424312 its reverse (21342477), we get a palindrome (98766789).

The spelling of 77424312 in words is "seventy-seven million, four hundred twenty-four thousand, three hundred twelve".