82696643 has 4 divisors (see below), whose sum is σ = 82808688. Its totient is φ = 82584600.

The previous prime is 82696637. The next prime is 82696657. The reversal of 82696643 is 34669628.

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 82696643 - 2⁸ = 82696387 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82696594 and 82696603.

It is not an unprimeable number, because it can be changed into a prime (82696633) 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, 54908 + ... + 56393.

It is an arithmetic number, because the mean of its divisors is an integer number (20702172).

Almost surely, 2^82696643 is an apocalyptic number.

82696643 is a deficient number, since it is larger than the sum of its proper divisors (112045).

82696643 is a wasteful number, since it uses less digits than its factorization.

82696643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112044.

The product of its digits is 373248, while the sum is 44.

The square root of 82696643 is about 9093.7694604603. The cubic root of 82696643 is about 435.6749867884.

The spelling of 82696643 in words is "eighty-two million, six hundred ninety-six thousand, six hundred forty-three".