82775802 has 48 divisors (see below), whose sum is σ = 176159520. Its totient is φ = 25898880.

The previous prime is 82775783. The next prime is 82775807. The reversal of 82775802 is 20857728.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (82775807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 292353 + ... + 292635.

It is an arithmetic number, because the mean of its divisors is an integer number (3669990).

Almost surely, 2^82775802 is an apocalyptic number.

82775802 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

82775802 is an abundant number, since it is smaller than the sum of its proper divisors (93383718).

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

82775802 is a wasteful number, since it uses less digits than its factorization.

82775802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399 (or 358 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 39.

The square root of 82775802 is about 9098.1207949774. The cubic root of 82775802 is about 435.8139549367.

The spelling of 82775802 in words is "eighty-two million, seven hundred seventy-five thousand, eight hundred two".