77645082 has 8 divisors (see below), whose sum is σ = 155290176. Its totient is φ = 25881692.

The previous prime is 77645059. The next prime is 77645101. The reversal of 77645082 is 28054677.

It is a sphenic number, since it is the product of 3 distinct primes.

77645082 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 77645082.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6470418 + ... + 6470429.

It is an arithmetic number, because the mean of its divisors is an integer number (19411272).

Almost surely, 2^77645082 is an apocalyptic number.

77645082 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

77645082 is a wasteful number, since it uses less digits than its factorization.

77645082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12940852.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 77645082 is about 8811.6446818968. The cubic root of 77645082 is about 426.6168299809.

The spelling of 77645082 in words is "seventy-seven million, six hundred forty-five thousand, eighty-two".