83999051 has 4 divisors (see below), whose sum is σ = 86895600. Its totient is φ = 81102504.

The previous prime is 83999029. The next prime is 83999077. The reversal of 83999051 is 15099938.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 83999051 - 2¹⁸ = 83736907 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83998993 and 83999011.

It is not an unprimeable number, because it can be changed into a prime (83999021) 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, 1448231 + ... + 1448288.

It is an arithmetic number, because the mean of its divisors is an integer number (21723900).

Almost surely, 2^83999051 is an apocalyptic number.

83999051 is a deficient number, since it is larger than the sum of its proper divisors (2896549).

83999051 is a wasteful number, since it uses less digits than its factorization.

83999051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2896548.

The product of its (nonzero) digits is 87480, while the sum is 44.

The square root of 83999051 is about 9165.0996175710. The cubic root of 83999051 is about 437.9502647113.

The spelling of 83999051 in words is "eighty-three million, nine hundred ninety-nine thousand, fifty-one".