82422117 has 20 divisors (see below), whose sum is σ = 123467916. Its totient is φ = 54794880.

The previous prime is 82422113. The next prime is 82422139. The reversal of 82422117 is 71122428.

It can be written as a sum of positive squares in 2 ways, for example, as 37344321 + 45077796 = 6111^2 + 6714^2 .

It is not a de Polignac number, because 82422117 - 2² = 82422113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82422113) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 32893 + ... + 35309.

Almost surely, 2^82422117 is an apocalyptic number.

It is an amenable number.

82422117 is a deficient number, since it is larger than the sum of its proper divisors (41045799).

82422117 is a wasteful number, since it uses less digits than its factorization.

82422117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2850 (or 2841 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 82422117 is about 9078.6627319226. The cubic root of 82422117 is about 435.1923525055.

The spelling of 82422117 in words is "eighty-two million, four hundred twenty-two thousand, one hundred seventeen".