77322460 has 24 divisors (see below), whose sum is σ = 171929520. Its totient is φ = 29109504.

The previous prime is 77322449. The next prime is 77322461. The reversal of 77322460 is 6422377.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77322461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113370 + ... + 114049.

It is an arithmetic number, because the mean of its divisors is an integer number (7163730).

Almost surely, 2^77322460 is an apocalyptic number.

It is an amenable number.

77322460 is an abundant number, since it is smaller than the sum of its proper divisors (94607060).

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

77322460 is a wasteful number, since it uses less digits than its factorization.

77322460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227445 (or 227443 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 77322460 is about 8793.3190548279. The cubic root of 77322460 is about 426.0251331539.

The spelling of 77322460 in words is "seventy-seven million, three hundred twenty-two thousand, four hundred sixty".