82396780 has 24 divisors (see below), whose sum is σ = 177711408. Its totient is φ = 32067648.

The previous prime is 82396777. The next prime is 82396799. The reversal of 82396780 is 8769328.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54934 + ... + 56413.

It is an arithmetic number, because the mean of its divisors is an integer number (7404642).

Almost surely, 2^82396780 is an apocalyptic number.

It is an amenable number.

82396780 is an abundant number, since it is smaller than the sum of its proper divisors (95314628).

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

82396780 is a wasteful number, since it uses less digits than its factorization.

82396780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111393 (or 111391 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 82396780 is about 9077.2672099041. The cubic root of 82396780 is about 435.1477544490.

The spelling of 82396780 in words is "eighty-two million, three hundred ninety-six thousand, seven hundred eighty".