83668290 has 32 divisors (see below), whose sum is σ = 205704576. Its totient is φ = 21767040.

The previous prime is 83668289. The next prime is 83668337. The reversal of 83668290 is 9286638.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32782 + ... + 35241.

It is an arithmetic number, because the mean of its divisors is an integer number (6428268).

Almost surely, 2^83668290 is an apocalyptic number.

83668290 is an abundant number, since it is smaller than the sum of its proper divisors (122036286).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83668290 is a wasteful number, since it uses less digits than its factorization.

83668290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68074.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 83668290 is about 9147.0372252440. The cubic root of 83668290 is about 437.3746732178.

The spelling of 83668290 in words is "eighty-three million, six hundred sixty-eight thousand, two hundred ninety".