83581283 has 4 divisors (see below), whose sum is σ = 83906760. Its totient is φ = 83255808.

The previous prime is 83581279. The next prime is 83581319. The reversal of 83581283 is 38218538.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 83581283 - 2² = 83581279 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83551283) 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, 162353 + ... + 162866.

It is an arithmetic number, because the mean of its divisors is an integer number (20976690).

Almost surely, 2^83581283 is an apocalyptic number.

83581283 is a deficient number, since it is larger than the sum of its proper divisors (325477).

83581283 is a wasteful number, since it uses less digits than its factorization.

83581283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325476.

The product of its digits is 46080, while the sum is 38.

The square root of 83581283 is about 9142.2799672729. The cubic root of 83581283 is about 437.2230113920.

The spelling of 83581283 in words is "eighty-three million, five hundred eighty-one thousand, two hundred eighty-three".