630712 has 8 divisors (see below), whose sum is σ = 1182600. Its totient is φ = 315352.

The previous prime is 630709. The next prime is 630713. The reversal of 630712 is 217036.

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 630712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39412 + ... + 39427.

It is an arithmetic number, because the mean of its divisors is an integer number (147825).

2⁶³⁰⁷¹² is an apocalyptic number.

It is an amenable number.

630712 is a deficient number, since it is larger than the sum of its proper divisors (551888).

630712 is a wasteful number, since it uses less digits than its factorization.

630712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78845 (or 78841 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 630712 is about 794.1737845082. The cubic root of 630712 is about 85.7584713983.

Adding to 630712 its reverse (217036), we get a palindrome (847748).

The spelling of 630712 in words is "six hundred thirty thousand, seven hundred twelve".