630956 has 6 divisors (see below), whose sum is σ = 1104180. Its totient is φ = 315476.

The previous prime is 630941. The next prime is 630967. The reversal of 630956 is 659036.

It is an unprimeable number.

630956 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78866 + ... + 78873.

It is an arithmetic number, because the mean of its divisors is an integer number (184030).

2⁶³⁰⁹⁵⁶ is an apocalyptic number.

It is an amenable number.

630956 is a deficient number, since it is larger than the sum of its proper divisors (473224).

630956 is a wasteful number, since it uses less digits than its factorization.

630956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157743 (or 157741 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 630956 is about 794.3273884237. The cubic root of 630956 is about 85.7695289381.

The spelling of 630956 in words is "six hundred thirty thousand, nine hundred fifty-six".