82422049 has 4 divisors (see below), whose sum is σ = 83977236. Its totient is φ = 80866864.

The previous prime is 82422023. The next prime is 82422059. The reversal of 82422049 is 94022428.

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

It can be written as a sum of positive squares in 2 ways, for example, as 69605649 + 12816400 = 8343^2 + 3580^2 .

It is a cyclic number.

It is not a de Polignac number, because 82422049 - 2²¹ = 80324897 is a prime.

It is a super-2 number, since 2×82422049² = 13586788322716802, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 82422049.

It is not an unprimeable number, because it can be changed into a prime (82422059) 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, 777514 + ... + 777619.

It is an arithmetic number, because the mean of its divisors is an integer number (20994309).

Almost surely, 2^82422049 is an apocalyptic number.

It is an amenable number.

82422049 is a deficient number, since it is larger than the sum of its proper divisors (1555187).

82422049 is a wasteful number, since it uses less digits than its factorization.

82422049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555186.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 82422049 is about 9078.6589868769. The cubic root of 82422049 is about 435.1922328245.

The spelling of 82422049 in words is "eighty-two million, four hundred twenty-two thousand, forty-nine".