83958121 has 32 divisors (see below), whose sum is σ = 100154880. Its totient is φ = 69666816.

The previous prime is 83958109. The next prime is 83958151. The reversal of 83958121 is 12185938.

It is not a de Polignac number, because 83958121 - 2⁵ = 83958089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83958151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 612765 + ... + 612901.

It is an arithmetic number, because the mean of its divisors is an integer number (3129840).

Almost surely, 2^83958121 is an apocalyptic number.

It is an amenable number.

83958121 is a deficient number, since it is larger than the sum of its proper divisors (16196759).

83958121 is a wasteful number, since it uses less digits than its factorization.

83958121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273.

The product of its digits is 17280, while the sum is 37.

The square root of 83958121 is about 9162.8664183213. The cubic root of 83958121 is about 437.8791201909.

The spelling of 83958121 in words is "eighty-three million, nine hundred fifty-eight thousand, one hundred twenty-one".