83521083 has 4 divisors (see below), whose sum is σ = 111361448. Its totient is φ = 55680720.

The previous prime is 83521079. The next prime is 83521103. The reversal of 83521083 is 38012538.

It is a happy number.

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

It is not a de Polignac number, because 83521083 - 2² = 83521079 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83521083.

It is not an unprimeable number, because it can be changed into a prime (83521013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13920178 + ... + 13920183.

It is an arithmetic number, because the mean of its divisors is an integer number (27840362).

Almost surely, 2^83521083 is an apocalyptic number.

83521083 is a deficient number, since it is larger than the sum of its proper divisors (27840365).

83521083 is a wasteful number, since it uses less digits than its factorization.

83521083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27840364.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 83521083 is about 9138.9869788724. The cubic root of 83521083 is about 437.1180152089.

The spelling of 83521083 in words is "eighty-three million, five hundred twenty-one thousand, eighty-three".