82706685 has 8 divisors (see below), whose sum is σ = 132330720. Its totient is φ = 44110224.

The previous prime is 82706681. The next prime is 82706711. The reversal of 82706685 is 58660728.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82706685 - 2² = 82706681 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82706681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2756875 + ... + 2756904.

It is an arithmetic number, because the mean of its divisors is an integer number (16541340).

Almost surely, 2^82706685 is an apocalyptic number.

It is an amenable number.

82706685 is a deficient number, since it is larger than the sum of its proper divisors (49624035).

82706685 is a wasteful number, since it uses less digits than its factorization.

82706685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5513787.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 82706685 is about 9094.3215799751. The cubic root of 82706685 is about 435.6926210034.

The spelling of 82706685 in words is "eighty-two million, seven hundred six thousand, six hundred eighty-five".