82877817 has 32 divisors (see below), whose sum is σ = 125199360. Its totient is φ = 48323520.

The previous prime is 82877797. The next prime is 82877819. The reversal of 82877817 is 71877828.

It is not a de Polignac number, because 82877817 - 2⁷ = 82877689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82877819) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125434 + ... + 126092.

It is an arithmetic number, because the mean of its divisors is an integer number (3912480).

Almost surely, 2^82877817 is an apocalyptic number.

It is an amenable number.

82877817 is a deficient number, since it is larger than the sum of its proper divisors (42321543).

82877817 is a wasteful number, since it uses less digits than its factorization.

82877817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813.

The product of its digits is 351232, while the sum is 48.

The square root of 82877817 is about 9103.7254462116. The cubic root of 82877817 is about 435.9929174985.

The spelling of 82877817 in words is "eighty-two million, eight hundred seventy-seven thousand, eight hundred seventeen".