82775827 has 4 divisors (see below), whose sum is σ = 86374800. Its totient is φ = 79176856.

The previous prime is 82775821. The next prime is 82775851. The reversal of 82775827 is 72857728.

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

It is a de Polignac number, because none of the positive numbers 2^k-82775827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82775821) 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, 1799452 + ... + 1799497.

It is an arithmetic number, because the mean of its divisors is an integer number (21593700).

Almost surely, 2^82775827 is an apocalyptic number.

82775827 is a deficient number, since it is larger than the sum of its proper divisors (3598973).

82775827 is a wasteful number, since it uses less digits than its factorization.

82775827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3598972.

The product of its digits is 439040, while the sum is 46.

The square root of 82775827 is about 9098.1221688874. The cubic root of 82775827 is about 435.8139988116.

The spelling of 82775827 in words is "eighty-two million, seven hundred seventy-five thousand, eight hundred twenty-seven".