231897683 has 4 divisors (see below), whose sum is σ = 232465080. Its totient is φ = 231330288.

The previous prime is 231897649. The next prime is 231897689. The reversal of 231897683 is 386798132.

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 231897683 - 2¹⁰ = 231896659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231897689) 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, 283085 + ... + 283902.

It is an arithmetic number, because the mean of its divisors is an integer number (58116270).

Almost surely, 2^231897683 is an apocalyptic number.

231897683 is a deficient number, since it is larger than the sum of its proper divisors (567397).

231897683 is an equidigital number, since it uses as much as digits as its factorization.

231897683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567396.

The product of its digits is 435456, while the sum is 47.

The square root of 231897683 is about 15228.1871212564. The cubic root of 231897683 is about 614.3730213258.

It can be divided in two parts, 2318 and 97683, that added together give a palindrome (100001).

The spelling of 231897683 in words is "two hundred thirty-one million, eight hundred ninety-seven thousand, six hundred eighty-three".