232011987 has 4 divisors (see below), whose sum is σ = 309349320. Its totient is φ = 154674656.

The previous prime is 232011973. The next prime is 232011991. The reversal of 232011987 is 789110232.

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 232011987 - 2¹⁹ = 231487699 is a prime.

It is a super-2 number, since 2×232011987² = 107659124223376338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (232011917) 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, 38668662 + ... + 38668667.

It is an arithmetic number, because the mean of its divisors is an integer number (77337330).

Almost surely, 2^232011987 is an apocalyptic number.

232011987 is a deficient number, since it is larger than the sum of its proper divisors (77337333).

232011987 is an equidigital number, since it uses as much as digits as its factorization.

232011987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77337332.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 232011987 is about 15231.9396991979. The cubic root of 232011987 is about 614.4739476738.

The spelling of 232011987 in words is "two hundred thirty-two million, eleven thousand, nine hundred eighty-seven".