630332857 has 8 divisors (see below), whose sum is σ = 785869632. Its totient is φ = 491168400.

The previous prime is 630332797. The next prime is 630332861. The reversal of 630332857 is 758233036.

630332857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 630332857 - 2¹⁵ = 630300089 is a prime.

It is a super-2 number, since 2×630332857² = 794639021227564898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630332897) 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, 4092994 + ... + 4093147.

It is an arithmetic number, because the mean of its divisors is an integer number (98233704).

Almost surely, 2^630332857 is an apocalyptic number.

It is an amenable number.

630332857 is a deficient number, since it is larger than the sum of its proper divisors (155536775).

630332857 is a wasteful number, since it uses less digits than its factorization.

630332857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8186159.

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 630332857 is about 25106.4305905877. The cubic root of 630332857 is about 857.4128381686.

The spelling of 630332857 in words is "six hundred thirty million, three hundred thirty-two thousand, eight hundred fifty-seven".