723434 has 8 divisors (see below), whose sum is σ = 1122660. Its totient is φ = 349216.

The previous prime is 723421. The next prime is 723439. The reversal of 723434 is 434327.

It is a happy number.

723434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 714025 + 9409 = 845^2 + 97^2 .

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

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

It is not an unprimeable number, because it can be changed into a prime (723439) 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, 6179 + ... + 6294.

2⁷²³⁴³⁴ is an apocalyptic number.

723434 is a deficient number, since it is larger than the sum of its proper divisors (399226).

723434 is a wasteful number, since it uses less digits than its factorization.

723434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12504.

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

The square root of 723434 is about 850.5492343186. The cubic root of 723434 is about 89.7703610666.

The spelling of 723434 in words is "seven hundred twenty-three thousand, four hundred thirty-four".