83449873 has 4 divisors (see below), whose sum is σ = 89869108. Its totient is φ = 77030640.

The previous prime is 83449859. The next prime is 83449939. The reversal of 83449873 is 37894438.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17239104 + 66210769 = 4152^2 + 8137^2 .

It is a cyclic number.

It is not a de Polignac number, because 83449873 - 2⁹ = 83449361 is a prime.

It is a super-2 number, since 2×83449873² = 13927762607432258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83449813) 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, 3209598 + ... + 3209623.

It is an arithmetic number, because the mean of its divisors is an integer number (22467277).

Almost surely, 2^83449873 is an apocalyptic number.

It is an amenable number.

83449873 is a deficient number, since it is larger than the sum of its proper divisors (6419235).

83449873 is a wasteful number, since it uses less digits than its factorization.

83449873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6419234.

The product of its digits is 580608, while the sum is 46.

The square root of 83449873 is about 9135.0902020724. The cubic root of 83449873 is about 436.9937510779.

The spelling of 83449873 in words is "eighty-three million, four hundred forty-nine thousand, eight hundred seventy-three".