630900585 has 48 divisors (see below), whose sum is σ = 1259406720. Its totient is φ = 286191360.

The previous prime is 630900581. The next prime is 630900587. The reversal of 630900585 is 585009036.

It is not a de Polignac number, because 630900585 - 2² = 630900581 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (630900581) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33621 + ... + 48909.

It is an arithmetic number, because the mean of its divisors is an integer number (26237640).

Almost surely, 2^630900585 is an apocalyptic number.

It is an amenable number.

630900585 is a deficient number, since it is larger than the sum of its proper divisors (628506135).

630900585 is a wasteful number, since it uses less digits than its factorization.

630900585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15438 (or 15435 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 630900585 is about 25117.7344718826. The cubic root of 630900585 is about 857.6701790323.

The spelling of 630900585 in words is "six hundred thirty million, nine hundred thousand, five hundred eighty-five".