234985 has 4 divisors (see below), whose sum is σ = 281988. Its totient is φ = 187984.

The previous prime is 234979. The next prime is 234989. The reversal of 234985 is 589432.

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

It can be written as a sum of positive squares in 2 ways, for example, as 97344 + 137641 = 312^2 + 371^2 .

It is a cyclic number.

It is not a de Polignac number, because 234985 - 2³ = 234977 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23494 + ... + 23503.

It is an arithmetic number, because the mean of its divisors is an integer number (70497).

2²³⁴⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

234985 is a deficient number, since it is larger than the sum of its proper divisors (47003).

234985 is an equidigital number, since it uses as much as digits as its factorization.

234985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47002.

The product of its digits is 8640, while the sum is 31.

The square root of 234985 is about 484.7525141760. The cubic root of 234985 is about 61.7087449199.

The spelling of 234985 in words is "two hundred thirty-four thousand, nine hundred eighty-five".