82077508 has 6 divisors (see below), whose sum is σ = 143635646. Its totient is φ = 41038752.

The previous prime is 82077503. The next prime is 82077517. The reversal of 82077508 is 80577028.

It can be written as a sum of positive squares in only one way, i.e., 64032004 + 18045504 = 8002^2 + 4248^2 .

It is not an unprimeable number, because it can be changed into a prime (82077503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10259685 + ... + 10259692.

Almost surely, 2^82077508 is an apocalyptic number.

It is an amenable number.

82077508 is a deficient number, since it is larger than the sum of its proper divisors (61558138).

82077508 is a wasteful number, since it uses less digits than its factorization.

82077508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20519381 (or 20519379 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 37.

The square root of 82077508 is about 9059.6637906713. The cubic root of 82077508 is about 434.5849884270.

The spelling of 82077508 in words is "eighty-two million, seventy-seven thousand, five hundred eight".