630684951 has 16 divisors (see below), whose sum is σ = 907984896. Its totient is φ = 387091296.

The previous prime is 630684931. The next prime is 630684997. The reversal of 630684951 is 159486036.

It is not a de Polignac number, because 630684951 - 2⁷ = 630684823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630684931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6175 + ... + 36048.

It is an arithmetic number, because the mean of its divisors is an integer number (56749056).

Almost surely, 2^630684951 is an apocalyptic number.

630684951 is a deficient number, since it is larger than the sum of its proper divisors (277299945).

630684951 is a wasteful number, since it uses less digits than its factorization.

630684951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42622.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 630684951 is about 25113.4416398868. The cubic root of 630684951 is about 857.5724542189.

The spelling of 630684951 in words is "six hundred thirty million, six hundred eighty-four thousand, nine hundred fifty-one".