83438331 has 8 divisors (see below), whose sum is σ = 113136960. Its totient is φ = 54682632.

The previous prime is 83438269. The next prime is 83438359. The reversal of 83438331 is 13383438.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 83438331 - 2²² = 79244027 is a prime.

It is a super-2 number, since 2×83438331² = 13923910160131122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 83438292 and 83438301.

It is not an unprimeable number, because it can be changed into a prime (83438231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235525 + ... + 235878.

It is an arithmetic number, because the mean of its divisors is an integer number (14142120).

Almost surely, 2^83438331 is an apocalyptic number.

83438331 is a deficient number, since it is larger than the sum of its proper divisors (29698629).

83438331 is a wasteful number, since it uses less digits than its factorization.

83438331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471465.

The product of its digits is 20736, while the sum is 33.

The square root of 83438331 is about 9134.4584404331. The cubic root of 83438331 is about 436.9736031965.

The spelling of 83438331 in words is "eighty-three million, four hundred thirty-eight thousand, three hundred thirty-one".