82396691 has 4 divisors (see below), whose sum is σ = 88734912. Its totient is φ = 76058472.

The previous prime is 82396679. The next prime is 82396693. The reversal of 82396691 is 19669328.

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

It is a cyclic number.

It is not a de Polignac number, because 82396691 - 2²² = 78202387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82396693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3169091 + ... + 3169116.

It is an arithmetic number, because the mean of its divisors is an integer number (22183728).

Almost surely, 2^82396691 is an apocalyptic number.

82396691 is a deficient number, since it is larger than the sum of its proper divisors (6338221).

82396691 is a wasteful number, since it uses less digits than its factorization.

82396691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6338220.

The product of its digits is 139968, while the sum is 44.

The square root of 82396691 is about 9077.2623075463. The cubic root of 82396691 is about 435.1475977755.

It can be divided in two parts, 8 and 2396691, that multiplied together give a triangular number (19173528 = T₆₁₉₂).

The spelling of 82396691 in words is "eighty-two million, three hundred ninety-six thousand, six hundred ninety-one".