234199987 has 8 divisors (see below), whose sum is σ = 271324256. Its totient is φ = 197992512.

The previous prime is 234199981. The next prime is 234199997. The reversal of 234199987 is 789991432.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 234199987 - 2⁷ = 234199859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (234199981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228648 + ... + 229669.

It is an arithmetic number, because the mean of its divisors is an integer number (33915532).

Almost surely, 2^234199987 is an apocalyptic number.

234199987 is a deficient number, since it is larger than the sum of its proper divisors (37124269).

234199987 is an equidigital number, since it uses as much as digits as its factorization.

234199987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458397.

The product of its digits is 979776, while the sum is 52.

The square root of 234199987 is about 15303.5939243042. The cubic root of 234199987 is about 616.3995157732.

The spelling of 234199987 in words is "two hundred thirty-four million, one hundred ninety-nine thousand, nine hundred eighty-seven".