623434 has 8 divisors (see below), whose sum is σ = 1068768. Its totient is φ = 267180.

The previous prime is 623431. The next prime is 623437. The reversal of 623434 is 434326.

It is an interprime number because it is at equal distance from previous prime (623431) and next prime (623437).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623431) 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, 22252 + ... + 22279.

It is an arithmetic number, because the mean of its divisors is an integer number (133596).

2⁶²³⁴³⁴ is an apocalyptic number.

623434 is a deficient number, since it is larger than the sum of its proper divisors (445334).

623434 is a wasteful number, since it uses less digits than its factorization.

623434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44540.

The product of its digits is 1728, while the sum is 22.

The square root of 623434 is about 789.5783684980. The cubic root of 623434 is about 85.4273290147.

The spelling of 623434 in words is "six hundred twenty-three thousand, four hundred thirty-four".