230856987 has 4 divisors (see below), whose sum is σ = 307809320. Its totient is φ = 153904656.

The previous prime is 230856971. The next prime is 230857021. The reversal of 230856987 is 789658032.

230856987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 230856987 - 2⁴ = 230856971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230856487) 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, 38476162 + ... + 38476167.

It is an arithmetic number, because the mean of its divisors is an integer number (76952330).

Almost surely, 2^230856987 is an apocalyptic number.

230856987 is a deficient number, since it is larger than the sum of its proper divisors (76952333).

230856987 is an equidigital number, since it uses as much as digits as its factorization.

230856987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76952332.

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 230856987 is about 15193.9786428703. The cubic root of 230856987 is about 613.4525947261.

It can be divided in two parts, 2308 and 56987, that added together give a palindrome (59295).

The spelling of 230856987 in words is "two hundred thirty million, eight hundred fifty-six thousand, nine hundred eighty-seven".