630670 has 8 divisors (see below), whose sum is σ = 1135224. Its totient is φ = 252264.

The previous prime is 630659. The next prime is 630677. The reversal of 630670 is 76036.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31524 + ... + 31543.

It is an arithmetic number, because the mean of its divisors is an integer number (141903).

2⁶³⁰⁶⁷⁰ is an apocalyptic number.

630670 is a deficient number, since it is larger than the sum of its proper divisors (504554).

630670 is a wasteful number, since it uses less digits than its factorization.

630670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63074.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 630670 is about 794.1473414927. The cubic root of 630670 is about 85.7565677636.

The spelling of 630670 in words is "six hundred thirty thousand, six hundred seventy".