434521623 has 8 divisors (see below), whose sum is σ = 587298928. Its totient is φ = 285712704.

The previous prime is 434521609. The next prime is 434521631. The reversal of 434521623 is 326125434.

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

It is not a de Polignac number, because 434521623 - 2⁹ = 434521111 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 (434521603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 991840 + ... + 992277.

It is an arithmetic number, because the mean of its divisors is an integer number (73412366).

Almost surely, 2^434521623 is an apocalyptic number.

434521623 is a deficient number, since it is larger than the sum of its proper divisors (152777305).

434521623 is a wasteful number, since it uses less digits than its factorization.

434521623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984193.

The product of its digits is 17280, while the sum is 30.

The square root of 434521623 is about 20845.1822491433. The cubic root of 434521623 is about 757.4206319266.

The spelling of 434521623 in words is "four hundred thirty-four million, five hundred twenty-one thousand, six hundred twenty-three".