630085657 has 8 divisors (see below), whose sum is σ = 669448800. Its totient is φ = 591342624.

The previous prime is 630085649. The next prime is 630085661. The reversal of 630085657 is 756580036.

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

It is not a de Polignac number, because 630085657 - 2³ = 630085649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630085607) 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, 152932 + ... + 156997.

It is an arithmetic number, because the mean of its divisors is an integer number (83681100).

Almost surely, 2^630085657 is an apocalyptic number.

It is an amenable number.

630085657 is a deficient number, since it is larger than the sum of its proper divisors (39363143).

630085657 is a wasteful number, since it uses less digits than its factorization.

630085657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310055.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 630085657 is about 25101.5070663098. The cubic root of 630085657 is about 857.3007385773.

The spelling of 630085657 in words is "six hundred thirty million, eighty-five thousand, six hundred fifty-seven".