630604823 has 8 divisors (see below), whose sum is σ = 658790496. Its totient is φ = 602483200.

The previous prime is 630604811. The next prime is 630604829. The reversal of 630604823 is 328406036.

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-630604823 is a prime.

It is a super-2 number, since 2×630604823² = 795324885581722658, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 630604823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630604829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4703 + ... + 35823.

It is an arithmetic number, because the mean of its divisors is an integer number (82348812).

Almost surely, 2^630604823 is an apocalyptic number.

630604823 is a deficient number, since it is larger than the sum of its proper divisors (28185673).

630604823 is a wasteful number, since it uses less digits than its factorization.

630604823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32025.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 630604823 is about 25111.8462682456. The cubic root of 630604823 is about 857.5361347244.

The spelling of 630604823 in words is "six hundred thirty million, six hundred four thousand, eight hundred twenty-three".