434109723 has 4 divisors (see below), whose sum is σ = 578812968. Its totient is φ = 289406480.

The previous prime is 434109713. The next prime is 434109743. The reversal of 434109723 is 327901434.

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 434109723 - 2⁴ = 434109707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (434109703) 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, 72351618 + ... + 72351623.

It is an arithmetic number, because the mean of its divisors is an integer number (144703242).

Almost surely, 2^434109723 is an apocalyptic number.

434109723 is a deficient number, since it is larger than the sum of its proper divisors (144703245).

434109723 is a wasteful number, since it uses less digits than its factorization.

434109723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144703244.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 434109723 is about 20835.2999258470. The cubic root of 434109723 is about 757.1812267405.

The spelling of 434109723 in words is "four hundred thirty-four million, one hundred nine thousand, seven hundred twenty-three".