83675945 has 4 divisors (see below), whose sum is σ = 100411140. Its totient is φ = 66940752.

The previous prime is 83675941. The next prime is 83675953. The reversal of 83675945 is 54957638.

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 39904489 + 43771456 = 6317^2 + 6616^2 .

It is a cyclic number.

It is not a de Polignac number, because 83675945 - 2² = 83675941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83675945.

It is not an unprimeable number, because it can be changed into a prime (83675941) 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, 8367590 + ... + 8367599.

It is an arithmetic number, because the mean of its divisors is an integer number (25102785).

Almost surely, 2^83675945 is an apocalyptic number.

It is an amenable number.

83675945 is a deficient number, since it is larger than the sum of its proper divisors (16735195).

83675945 is a wasteful number, since it uses less digits than its factorization.

83675945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16735194.

The product of its digits is 907200, while the sum is 47.

The square root of 83675945 is about 9147.4556571759. The cubic root of 83675945 is about 437.3880116085.

The spelling of 83675945 in words is "eighty-three million, six hundred seventy-five thousand, nine hundred forty-five".