983399231 has 4 divisors (see below), whose sum is σ = 983477352. Its totient is φ = 983321112.

The previous prime is 983399213. The next prime is 983399257. The reversal of 983399231 is 132993389.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 983399231 - 2¹⁴ = 983382847 is a prime.

It is a super-2 number, since 2×983399231² = 1934148095062782722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (983399281) 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, 15401 + ... + 46946.

It is an arithmetic number, because the mean of its divisors is an integer number (245869338).

Almost surely, 2^983399231 is an apocalyptic number.

983399231 is a deficient number, since it is larger than the sum of its proper divisors (78121).

983399231 is a wasteful number, since it uses less digits than its factorization.

983399231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78120.

The product of its digits is 314928, while the sum is 47.

The square root of 983399231 is about 31359.1969125486. The cubic root of 983399231 is about 994.4355041516.

The spelling of 983399231 in words is "nine hundred eighty-three million, three hundred ninety-nine thousand, two hundred thirty-one".