82277228 has 24 divisors (see below), whose sum is σ = 157612224. Its totient is φ = 37270800.

The previous prime is 82277203. The next prime is 82277249.

82277228 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 82277191 and 82277200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10463 + ... + 16553.

It is an arithmetic number, because the mean of its divisors is an integer number (6567176).

Almost surely, 2^82277228 is an apocalyptic number.

It is an amenable number.

82277228 is a deficient number, since it is larger than the sum of its proper divisors (75334996).

82277228 is a wasteful number, since it uses less digits than its factorization.

82277228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6413 (or 6411 counting only the distinct ones).

The product of its digits is 50176, while the sum is 38.

The square root of 82277228 is about 9070.6795776281. The cubic root of 82277228 is about 434.9371962001.

The spelling of 82277228 in words is "eighty-two million, two hundred seventy-seven thousand, two hundred twenty-eight".