83803613 has 4 divisors (see below), whose sum is σ = 83830368. Its totient is φ = 83776860.

The previous prime is 83803607. The next prime is 83803619. The reversal of 83803613 is 31630838.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31630838 = 2 ⋅15815419.

It is an interprime number because it is at equal distance from previous prime (83803607) and next prime (83803619).

It is a cyclic number.

It is not a de Polignac number, because 83803613 - 2⁴ = 83803597 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83803613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83803619) 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, 7943 + ... + 15188.

It is an arithmetic number, because the mean of its divisors is an integer number (20957592).

Almost surely, 2^83803613 is an apocalyptic number.

It is an amenable number.

83803613 is a deficient number, since it is larger than the sum of its proper divisors (26755).

83803613 is a wasteful number, since it uses less digits than its factorization.

83803613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26754.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 83803613 is about 9154.4313313280. The cubic root of 83803613 is about 437.6103458262.

The spelling of 83803613 in words is "eighty-three million, eight hundred three thousand, six hundred thirteen".