83984357 has 4 divisors (see below), whose sum is σ = 84044160. Its totient is φ = 83924556.

The previous prime is 83984353. The next prime is 83984423. The reversal of 83984357 is 75348938.

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 not a de Polignac number, because 83984357 - 2² = 83984353 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 (83984353) 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, 27743 + ... + 30620.

It is an arithmetic number, because the mean of its divisors is an integer number (21011040).

Almost surely, 2^83984357 is an apocalyptic number.

It is an amenable number.

83984357 is a deficient number, since it is larger than the sum of its proper divisors (59803).

83984357 is a wasteful number, since it uses less digits than its factorization.

83984357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59802.

The product of its digits is 725760, while the sum is 47.

The square root of 83984357 is about 9164.2979545626. The cubic root of 83984357 is about 437.9247262622.

The spelling of 83984357 in words is "eighty-three million, nine hundred eighty-four thousand, three hundred fifty-seven".