630934 has 4 divisors (see below), whose sum is σ = 946404. Its totient is φ = 315466.

The previous prime is 630919. The next prime is 630941. The reversal of 630934 is 439036.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 630899 and 630908.

It is a congruent number.

It is an unprimeable number.

630934 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, 157732 + ... + 157735.

It is an arithmetic number, because the mean of its divisors is an integer number (236601).

2⁶³⁰⁹³⁴ is an apocalyptic number.

630934 is a deficient number, since it is larger than the sum of its proper divisors (315470).

630934 is a wasteful number, since it uses less digits than its factorization.

630934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315469.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 630934 is about 794.3135401087. The cubic root of 630934 is about 85.7685320638.

The spelling of 630934 in words is "six hundred thirty thousand, nine hundred thirty-four".