83693693 has 4 divisors (see below), whose sum is σ = 83805888. Its totient is φ = 83581500.

The previous prime is 83693663. The next prime is 83693719. The reversal of 83693693 is 39639638.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83693693 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 (83693633) 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, 54971 + ... + 56472.

It is an arithmetic number, because the mean of its divisors is an integer number (20951472).

Almost surely, 2^83693693 is an apocalyptic number.

It is an amenable number.

83693693 is a deficient number, since it is larger than the sum of its proper divisors (112195).

83693693 is a wasteful number, since it uses less digits than its factorization.

83693693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112194.

The product of its digits is 629856, while the sum is 47.

The square root of 83693693 is about 9148.4257115637. The cubic root of 83693693 is about 437.4189333334.

The spelling of 83693693 in words is "eighty-three million, six hundred ninety-three thousand, six hundred ninety-three".