82697646 has 32 divisors (see below), whose sum is σ = 172339200. Its totient is φ = 26425440.

The previous prime is 82697623. The next prime is 82697653. The reversal of 82697646 is 64679628.

It is a junction number, because it is equal to n+sod(n) for n = 82697595 and 82697604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18235 + ... + 22313.

It is an arithmetic number, because the mean of its divisors is an integer number (5385600).

Almost surely, 2^82697646 is an apocalyptic number.

82697646 is an abundant number, since it is smaller than the sum of its proper divisors (89641554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82697646 is a wasteful number, since it uses less digits than its factorization.

82697646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4224.

The product of its digits is 870912, while the sum is 48.

The square root of 82697646 is about 9093.8246079414. The cubic root of 82697646 is about 435.6767481668.

The spelling of 82697646 in words is "eighty-two million, six hundred ninety-seven thousand, six hundred forty-six".