82796720 has 20 divisors (see below), whose sum is σ = 192502560. Its totient is φ = 33118656.

The previous prime is 82796683. The next prime is 82796723. The reversal of 82796720 is 2769728.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (82796723) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 517400 + ... + 517559.

It is an arithmetic number, because the mean of its divisors is an integer number (9625128).

Almost surely, 2^82796720 is an apocalyptic number.

82796720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

82796720 is an abundant number, since it is smaller than the sum of its proper divisors (109705840).

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

82796720 is a wasteful number, since it uses less digits than its factorization.

82796720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034972 (or 1034966 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 82796720 is about 9099.2703004142. The cubic root of 82796720 is about 435.8506628806.

The spelling of 82796720 in words is "eighty-two million, seven hundred ninety-six thousand, seven hundred twenty".