82919699 has 4 divisors (see below), whose sum is σ = 85594560. Its totient is φ = 80244840.

The previous prime is 82919689. The next prime is 82919713. The reversal of 82919699 is 99691928.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82919699 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82919699.

It is not an unprimeable number, because it can be changed into a prime (82919689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1337384 + ... + 1337445.

It is an arithmetic number, because the mean of its divisors is an integer number (21398640).

Almost surely, 2^82919699 is an apocalyptic number.

82919699 is a deficient number, since it is larger than the sum of its proper divisors (2674861).

82919699 is a wasteful number, since it uses less digits than its factorization.

82919699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2674860.

The product of its digits is 629856, while the sum is 53.

The square root of 82919699 is about 9106.0254227627. The cubic root of 82919699 is about 436.0663476031.

The spelling of 82919699 in words is "eighty-two million, nine hundred nineteen thousand, six hundred ninety-nine".