83732290 has 8 divisors (see below), whose sum is σ = 150718140. Its totient is φ = 33492912.

The previous prime is 83732287. The next prime is 83732303. The reversal of 83732290 is 9223738.

It can be written as a sum of positive squares in 2 ways, for example, as 79941481 + 3790809 = 8941^2 + 1947^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×83732290² = 14022192777288200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4186605 + ... + 4186624.

Almost surely, 2^83732290 is an apocalyptic number.

83732290 is a deficient number, since it is larger than the sum of its proper divisors (66985850).

83732290 is a wasteful number, since it uses less digits than its factorization.

83732290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8373236.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 83732290 is about 9150.5349570394. The cubic root of 83732290 is about 437.4861644604.

The spelling of 83732290 in words is "eighty-three million, seven hundred thirty-two thousand, two hundred ninety".