82766031 has 4 divisors (see below), whose sum is σ = 110354712. Its totient is φ = 55177352.

The previous prime is 82766017. The next prime is 82766039. The reversal of 82766031 is 13066728.

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

It is a cyclic number.

It is not a de Polignac number, because 82766031 - 2¹³ = 82757839 is a prime.

It is a super-2 number, since 2×82766031² = 13700431774985922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 82765983 and 82766001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82766039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13794336 + ... + 13794341.

It is an arithmetic number, because the mean of its divisors is an integer number (27588678).

Almost surely, 2^82766031 is an apocalyptic number.

82766031 is a deficient number, since it is larger than the sum of its proper divisors (27588681).

82766031 is a wasteful number, since it uses less digits than its factorization.

82766031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27588680.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 82766031 is about 9097.5838001087. The cubic root of 82766031 is about 435.7968061822.

The spelling of 82766031 in words is "eighty-two million, seven hundred sixty-six thousand, thirty-one".