630704631 has 8 divisors (see below), whose sum is σ = 855192960. Its totient is φ = 413343032.

The previous prime is 630704623. The next prime is 630704647. The reversal of 630704631 is 136407036.

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 630704631 - 2³ = 630704623 is a prime.

It is a super-2 number, since 2×630704631² = 795576663129692322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630704651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1781475 + ... + 1781828.

It is an arithmetic number, because the mean of its divisors is an integer number (106899120).

Almost surely, 2^630704631 is an apocalyptic number.

630704631 is a deficient number, since it is larger than the sum of its proper divisors (224488329).

630704631 is a wasteful number, since it uses less digits than its factorization.

630704631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3563365.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 630704631 is about 25113.8334588728. The cubic root of 630704631 is about 857.5813740715.

The spelling of 630704631 in words is "six hundred thirty million, seven hundred four thousand, six hundred thirty-one".