630817423 has 8 divisors (see below), whose sum is σ = 670467200. Its totient is φ = 591812568.

The previous prime is 630817391. The next prime is 630817427. The reversal of 630817423 is 324718036.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 630817423 - 2⁵ = 630817391 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 (630817427) 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, 159213 + ... + 163126.

It is an arithmetic number, because the mean of its divisors is an integer number (83808400).

Almost surely, 2^630817423 is an apocalyptic number.

630817423 is a deficient number, since it is larger than the sum of its proper divisors (39649777).

630817423 is a wasteful number, since it uses less digits than its factorization.

630817423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322461.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 630817423 is about 25116.0789734385. The cubic root of 630817423 is about 857.6324928509.

The spelling of 630817423 in words is "six hundred thirty million, eight hundred seventeen thousand, four hundred twenty-three".