77717082 has 32 divisors (see below), whose sum is σ = 159869952. Its totient is φ = 25172784.

The previous prime is 77717063. The next prime is 77717089. The reversal of 77717082 is 28071777.

It is a self number, because there is not a number n which added to its sum of digits gives 77717082.

It is not an unprimeable number, because it can be changed into a prime (77717089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57903 + ... + 59229.

It is an arithmetic number, because the mean of its divisors is an integer number (4995936).

Almost surely, 2^77717082 is an apocalyptic number.

77717082 is an abundant number, since it is smaller than the sum of its proper divisors (82152870).

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

77717082 is a wasteful number, since it uses less digits than its factorization.

77717082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602.

The product of its (nonzero) digits is 38416, while the sum is 39.

The square root of 77717082 is about 8815.7292381289. The cubic root of 77717082 is about 426.7486559831.

The spelling of 77717082 in words is "seventy-seven million, seven hundred seventeen thousand, eighty-two".