83613245 has 4 divisors (see below), whose sum is σ = 100335900. Its totient is φ = 66890592.

The previous prime is 83613209. The next prime is 83613247. The reversal of 83613245 is 54231638.

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 8773444 + 74839801 = 2962^2 + 8651^2 .

It is a cyclic number.

It is not a de Polignac number, because 83613245 - 2²⁶ = 16504381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83613247) 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, 8361320 + ... + 8361329.

It is an arithmetic number, because the mean of its divisors is an integer number (25083975).

Almost surely, 2^83613245 is an apocalyptic number.

It is an amenable number.

83613245 is a deficient number, since it is larger than the sum of its proper divisors (16722655).

83613245 is a wasteful number, since it uses less digits than its factorization.

83613245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16722654.

The product of its digits is 17280, while the sum is 32.

The square root of 83613245 is about 9144.0278324161. The cubic root of 83613245 is about 437.2787365514.

The spelling of 83613245 in words is "eighty-three million, six hundred thirteen thousand, two hundred forty-five".