82906685 has 4 divisors (see below), whose sum is σ = 99488028. Its totient is φ = 66325344.

The previous prime is 82906673. The next prime is 82906699. The reversal of 82906685 is 58660928.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12313081 + 70593604 = 3509^2 + 8402^2 .

It is a cyclic number.

It is not a de Polignac number, because 82906685 - 2¹⁰ = 82905661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8290664 + ... + 8290673.

It is an arithmetic number, because the mean of its divisors is an integer number (24872007).

Almost surely, 2^82906685 is an apocalyptic number.

It is an amenable number.

82906685 is a deficient number, since it is larger than the sum of its proper divisors (16581343).

82906685 is a wasteful number, since it uses less digits than its factorization.

82906685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16581342.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 82906685 is about 9105.3108129267. The cubic root of 82906685 is about 436.0435333043.

The spelling of 82906685 in words is "eighty-two million, nine hundred six thousand, six hundred eighty-five".