82790799 has 32 divisors (see below), whose sum is σ = 143861760. Its totient is φ = 41098752.

The previous prime is 82790789. The next prime is 82790837. The reversal of 82790799 is 99709728.

It is a happy number.

It is not a de Polignac number, because 82790799 - 2⁷ = 82790671 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82790779) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4279 + ... + 13560.

It is an arithmetic number, because the mean of its divisors is an integer number (4495680).

Almost surely, 2^82790799 is an apocalyptic number.

82790799 is a deficient number, since it is larger than the sum of its proper divisors (61070961).

82790799 is a wasteful number, since it uses less digits than its factorization.

82790799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17879.

The product of its (nonzero) digits is 571536, while the sum is 51.

The square root of 82790799 is about 9098.9449388377. The cubic root of 82790799 is about 435.8402730436.

The spelling of 82790799 in words is "eighty-two million, seven hundred ninety thousand, seven hundred ninety-nine".