82799760 has 120 divisors (see below), whose sum is σ = 265965120. Its totient is φ = 21308160.

The previous prime is 82799737. The next prime is 82799767. The reversal of 82799760 is 6799728.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (82799767) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 230461 + ... + 230819.

It is an arithmetic number, because the mean of its divisors is an integer number (2216376).

Almost surely, 2^82799760 is an apocalyptic number.

82799760 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82799760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132982560).

82799760 is an abundant number, since it is smaller than the sum of its proper divisors (183165360).

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

82799760 is a wasteful number, since it uses less digits than its factorization.

82799760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 82799760 is about 9099.4373452428. The cubic root of 82799760 is about 435.8559971088.

The spelling of 82799760 in words is "eighty-two million, seven hundred ninety-nine thousand, seven hundred sixty".