82979799 has 8 divisors (see below), whose sum is σ = 126445440. Its totient is φ = 47417016.

The previous prime is 82979797. The next prime is 82979833. The reversal of 82979799 is 99797928.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82979799 - 2¹ = 82979797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82979797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1975689 + ... + 1975730.

It is an arithmetic number, because the mean of its divisors is an integer number (15805680).

Almost surely, 2^82979799 is an apocalyptic number.

82979799 is a deficient number, since it is larger than the sum of its proper divisors (43465641).

82979799 is a wasteful number, since it uses less digits than its factorization.

82979799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3951429.

The product of its digits is 5143824, while the sum is 60.

The square root of 82979799 is about 9109.3248377693. The cubic root of 82979799 is about 436.1716754429.

The spelling of 82979799 in words is "eighty-two million, nine hundred seventy-nine thousand, seven hundred ninety-nine".