83228215 has 12 divisors (see below), whose sum is σ = 116180136. Its totient is φ = 57070608.

The previous prime is 83228203. The next prime is 83228239. The reversal of 83228215 is 51282238.

It is not a de Polignac number, because 83228215 - 2⁵ = 83228183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 169609 + ... + 170098.

It is an arithmetic number, because the mean of its divisors is an integer number (9681678).

Almost surely, 2^83228215 is an apocalyptic number.

83228215 is a deficient number, since it is larger than the sum of its proper divisors (32951921).

83228215 is a wasteful number, since it uses less digits than its factorization.

83228215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339726 (or 339719 counting only the distinct ones).

The product of its digits is 7680, while the sum is 31.

The square root of 83228215 is about 9122.9499066914. The cubic root of 83228215 is about 436.6064964455.

It can be divided in two parts, 8 and 3228215, that added together give a palindrome (3228223).

The spelling of 83228215 in words is "eighty-three million, two hundred twenty-eight thousand, two hundred fifteen".