82766699 has 4 divisors (see below), whose sum is σ = 83195736. Its totient is φ = 82337664.

The previous prime is 82766689. The next prime is 82766711. The reversal of 82766699 is 99666728.

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 82766699 - 2²⁰ = 81718123 is a prime.

It is a super-3 number, since 3×82766699³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82766699.

It is not an unprimeable number, because it can be changed into a prime (82766689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214229 + ... + 214614.

It is an arithmetic number, because the mean of its divisors is an integer number (20798934).

Almost surely, 2^82766699 is an apocalyptic number.

82766699 is a deficient number, since it is larger than the sum of its proper divisors (429037).

82766699 is a wasteful number, since it uses less digits than its factorization.

82766699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429036.

The product of its digits is 1959552, while the sum is 53.

The square root of 82766699 is about 9097.6205130792. The cubic root of 82766699 is about 435.7979786096.

The spelling of 82766699 in words is "eighty-two million, seven hundred sixty-six thousand, six hundred ninety-nine".