83618090 has 8 divisors (see below), whose sum is σ = 150512580. Its totient is φ = 33447232.

The previous prime is 83618089. The next prime is 83618099. The reversal of 83618090 is 9081638.

It can be written as a sum of positive squares in 2 ways, for example, as 79085449 + 4532641 = 8893^2 + 2129^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 83618090.

It is not an unprimeable number, because it can be changed into a prime (83618099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4180895 + ... + 4180914.

Almost surely, 2^83618090 is an apocalyptic number.

83618090 is a deficient number, since it is larger than the sum of its proper divisors (66894490).

83618090 is a wasteful number, since it uses less digits than its factorization.

83618090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8361816.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 83618090 is about 9144.2927555935. The cubic root of 83618090 is about 437.2871824802.

The spelling of 83618090 in words is "eighty-three million, six hundred eighteen thousand, ninety".