82774273 has 4 divisors (see below), whose sum is σ = 83533780. Its totient is φ = 82014768.

The previous prime is 82774231. The next prime is 82774301. The reversal of 82774273 is 37247728.

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 61355889 + 21418384 = 7833^2 + 4628^2 .

It is a cyclic number.

It is not a de Polignac number, because 82774273 - 2¹⁷ = 82643201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82774673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379590 + ... + 379807.

It is an arithmetic number, because the mean of its divisors is an integer number (20883445).

Almost surely, 2^82774273 is an apocalyptic number.

It is an amenable number.

82774273 is a deficient number, since it is larger than the sum of its proper divisors (759507).

82774273 is a wasteful number, since it uses less digits than its factorization.

82774273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759506.

The product of its digits is 131712, while the sum is 40.

The square root of 82774273 is about 9098.0367662480. The cubic root of 82774273 is about 435.8112715291.

The spelling of 82774273 in words is "eighty-two million, seven hundred seventy-four thousand, two hundred seventy-three".