423734 has 4 divisors (see below), whose sum is σ = 635604. Its totient is φ = 211866.

The previous prime is 423727. The next prime is 423749. The reversal of 423734 is 437324.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105932 + ... + 105935.

It is an arithmetic number, because the mean of its divisors is an integer number (158901).

2⁴²³⁷³⁴ is an apocalyptic number.

423734 is a deficient number, since it is larger than the sum of its proper divisors (211870).

423734 is a wasteful number, since it uses less digits than its factorization.

423734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211869.

The product of its digits is 2016, while the sum is 23.

The square root of 423734 is about 650.9485386726. The cubic root of 423734 is about 75.1100015462.

The spelling of 423734 in words is "four hundred twenty-three thousand, seven hundred thirty-four".