83320228 has 6 divisors (see below), whose sum is σ = 145810406. Its totient is φ = 41660112.

The previous prime is 83320199. The next prime is 83320231. The reversal of 83320228 is 82202338.

It can be written as a sum of positive squares in only one way, i.e., 58400164 + 24920064 = 7642^2 + 4992^2 .

It is a junction number, because it is equal to n+sod(n) for n = 83320196 and 83320205.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10415025 + ... + 10415032.

Almost surely, 2^83320228 is an apocalyptic number.

It is an amenable number.

83320228 is a deficient number, since it is larger than the sum of its proper divisors (62490178).

83320228 is a wasteful number, since it uses less digits than its factorization.

83320228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20830061 (or 20830059 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 83320228 is about 9127.9914548602. The cubic root of 83320228 is about 436.7673340414.

The spelling of 83320228 in words is "eighty-three million, three hundred twenty thousand, two hundred twenty-eight".