82820304 has 60 divisors (see below), whose sum is σ = 264896736. Its totient is φ = 23662656.

The previous prime is 82820281. The next prime is 82820321. The reversal of 82820304 is 40302828.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40074 + ... + 42089.

Almost surely, 2^82820304 is an apocalyptic number.

82820304 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

82820304 is an abundant number, since it is smaller than the sum of its proper divisors (182076432).

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

82820304 is a wasteful number, since it uses less digits than its factorization.

82820304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82184 (or 82175 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 82820304 is about 9100.5661362357. The cubic root of 82820304 is about 435.8920418395.

The spelling of 82820304 in words is "eighty-two million, eight hundred twenty thousand, three hundred four".