83123290 has 32 divisors (see below), whose sum is σ = 158034240. Its totient is φ = 31392000.

The previous prime is 83123279. The next prime is 83123323. The reversal of 83123290 is 9232138.

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, 75645 + ... + 76735.

It is an arithmetic number, because the mean of its divisors is an integer number (4938570).

Almost surely, 2^83123290 is an apocalyptic number.

83123290 is a deficient number, since it is larger than the sum of its proper divisors (74910950).

83123290 is a wasteful number, since it uses less digits than its factorization.

83123290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1518.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 83123290 is about 9117.1974860699. The cubic root of 83123290 is about 436.4229441038.

The spelling of 83123290 in words is "eighty-three million, one hundred twenty-three thousand, two hundred ninety".