77287084 has 24 divisors (see below), whose sum is σ = 161296128. Its totient is φ = 31682640.

The previous prime is 77287081. The next prime is 77287087. The reversal of 77287084 is 48078277.

It is an interprime number because it is at equal distance from previous prime (77287081) and next prime (77287087).

It is a self number, because there is not a number n which added to its sum of digits gives 77287084.

It is not an unprimeable number, because it can be changed into a prime (77287081) 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, 59362 + ... + 60649.

It is an arithmetic number, because the mean of its divisors is an integer number (6720672).

Almost surely, 2^77287084 is an apocalyptic number.

It is an amenable number.

77287084 is an abundant number, since it is smaller than the sum of its proper divisors (84009044).

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

77287084 is a wasteful number, since it uses less digits than its factorization.

77287084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120045 (or 120043 counting only the distinct ones).

The product of its (nonzero) digits is 175616, while the sum is 43.

The square root of 77287084 is about 8791.3072975525. The cubic root of 77287084 is about 425.9601526204.

The spelling of 77287084 in words is "seventy-seven million, two hundred eighty-seven thousand, eighty-four".