423610643 has 8 divisors (see below), whose sum is σ = 446659920. Its totient is φ = 400636800.

The previous prime is 423610613. The next prime is 423610651. The reversal of 423610643 is 346016324.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423610643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423610613) 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, 7130 + ... + 29967.

It is an arithmetic number, because the mean of its divisors is an integer number (55832490).

Almost surely, 2^423610643 is an apocalyptic number.

423610643 is a deficient number, since it is larger than the sum of its proper divisors (23049277).

423610643 is a wasteful number, since it uses less digits than its factorization.

423610643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37717.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 423610643 is about 20581.8036867520. The cubic root of 423610643 is about 751.0271219038.

Adding to 423610643 its reverse (346016324), we get a palindrome (769626967).

The spelling of 423610643 in words is "four hundred twenty-three million, six hundred ten thousand, six hundred forty-three".