82907686 has 16 divisors (see below), whose sum is σ = 130292064. Its totient is φ = 39491584.

The previous prime is 82907677. The next prime is 82907701. The reversal of 82907686 is 68670928.

82907686 = T₇₄₃₃ + T₇₄₃₄ + T₇₄₃₅.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8316 + ... + 15328.

It is an arithmetic number, because the mean of its divisors is an integer number (8143254).

Almost surely, 2^82907686 is an apocalyptic number.

82907686 is the 7435-th centered triangular number.

82907686 is a deficient number, since it is larger than the sum of its proper divisors (47384378).

82907686 is a wasteful number, since it uses less digits than its factorization.

82907686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7295.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 82907686 is about 9105.3657806812. The cubic root of 82907686 is about 436.0452882003.

The spelling of 82907686 in words is "eighty-two million, nine hundred seven thousand, six hundred eighty-six".