232081987 has 4 divisors (see below), whose sum is σ = 236015640. Its totient is φ = 228148336.

The previous prime is 232081939. The next prime is 232082021. The reversal of 232081987 is 789180232.

232081987 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-232081987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232081907) 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, 1966738 + ... + 1966855.

It is an arithmetic number, because the mean of its divisors is an integer number (59003910).

Almost surely, 2^232081987 is an apocalyptic number.

232081987 is a deficient number, since it is larger than the sum of its proper divisors (3933653).

232081987 is an equidigital number, since it uses as much as digits as its factorization.

232081987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3933652.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 232081987 is about 15234.2373291215. The cubic root of 232081987 is about 614.5357388077.

The spelling of 232081987 in words is "two hundred thirty-two million, eighty-one thousand, nine hundred eighty-seven".