83235613 has 4 divisors (see below), whose sum is σ = 83326140. Its totient is φ = 83145088.

The previous prime is 83235571. The next prime is 83235619. The reversal of 83235613 is 31653238.

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 43520409 + 39715204 = 6597^2 + 6302^2 .

It is a cyclic number.

It is not a de Polignac number, because 83235613 - 2⁹ = 83235101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83235619) 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, 43870 + ... + 45727.

It is an arithmetic number, because the mean of its divisors is an integer number (20831535).

Almost surely, 2^83235613 is an apocalyptic number.

It is an amenable number.

83235613 is a deficient number, since it is larger than the sum of its proper divisors (90527).

83235613 is an equidigital number, since it uses as much as digits as its factorization.

83235613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90526.

The product of its digits is 12960, while the sum is 31.

The square root of 83235613 is about 9123.3553586386. The cubic root of 83235613 is about 436.6194324398.

The spelling of 83235613 in words is "eighty-three million, two hundred thirty-five thousand, six hundred thirteen".