82786957 has 16 divisors (see below), whose sum is σ = 98717184. Its totient is φ = 68544000.

The previous prime is 82786937. The next prime is 82786961. The reversal of 82786957 is 75968728.

It is not a de Polignac number, because 82786957 - 2⁷ = 82786829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82786927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1344 + ... + 12937.

It is an arithmetic number, because the mean of its divisors is an integer number (6169824).

Almost surely, 2^82786957 is an apocalyptic number.

It is an amenable number.

82786957 is a deficient number, since it is larger than the sum of its proper divisors (15930227).

82786957 is a wasteful number, since it uses less digits than its factorization.

82786957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14340.

The product of its digits is 1693440, while the sum is 52.

The square root of 82786957 is about 9098.7338130094. The cubic root of 82786957 is about 435.8335310535.

The spelling of 82786957 in words is "eighty-two million, seven hundred eighty-six thousand, nine hundred fifty-seven".