234639901 has 4 divisors (see below), whose sum is σ = 234718204. Its totient is φ = 234561600.

The previous prime is 234639883. The next prime is 234639907. The reversal of 234639901 is 109936432.

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 46922500 + 187717401 = 6850^2 + 13701^2 .

It is a cyclic number.

It is not a de Polignac number, because 234639901 - 2⁷ = 234639773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234639907) 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, 34470 + ... + 40711.

It is an arithmetic number, because the mean of its divisors is an integer number (58679551).

Almost surely, 2^234639901 is an apocalyptic number.

It is an amenable number.

234639901 is a deficient number, since it is larger than the sum of its proper divisors (78303).

234639901 is an equidigital number, since it uses as much as digits as its factorization.

234639901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78302.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 234639901 is about 15317.9600795928. The cubic root of 234639901 is about 616.7852162960.

The spelling of 234639901 in words is "two hundred thirty-four million, six hundred thirty-nine thousand, nine hundred one".