83705613 has 8 divisors (see below), whose sum is σ = 111799968. Its totient is φ = 55707504.

The previous prime is 83705593. The next prime is 83705617. The reversal of 83705613 is 31650738.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 83705613 - 2⁹ = 83705101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83705617) 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 7 ways as a sum of consecutive naturals, for example, 22006 + ... + 25527.

It is an arithmetic number, because the mean of its divisors is an integer number (13974996).

Almost surely, 2^83705613 is an apocalyptic number.

It is an amenable number.

83705613 is a deficient number, since it is larger than the sum of its proper divisors (28094355).

83705613 is a wasteful number, since it uses less digits than its factorization.

83705613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48123.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 83705613 is about 9149.0771665781. The cubic root of 83705613 is about 437.4396986822.

The spelling of 83705613 in words is "eighty-three million, seven hundred five thousand, six hundred thirteen".