82277808 has 40 divisors (see below), whose sum is σ = 221795328. Its totient is φ = 26233152.

The previous prime is 82277803. The next prime is 82277827. The reversal of 82277808 is 80877228.

It is a self number, because there is not a number n which added to its sum of digits gives 82277808.

It is not an unprimeable number, because it can be changed into a prime (82277803) 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, 36160 + ... + 38367.

Almost surely, 2^82277808 is an apocalyptic number.

It is an amenable number.

82277808 is an abundant number, since it is smaller than the sum of its proper divisors (139517520).

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

82277808 is a wasteful number, since it uses less digits than its factorization.

82277808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74561 (or 74555 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 42.

The square root of 82277808 is about 9070.7115487155. The cubic root of 82277808 is about 434.9382182042.

The spelling of 82277808 in words is "eighty-two million, two hundred seventy-seven thousand, eight hundred eight".