630754 has 4 divisors (see below), whose sum is σ = 946134. Its totient is φ = 315376.

The previous prime is 630737. The next prime is 630797. The reversal of 630754 is 457036.

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

It can be written as a sum of positive squares in only one way, i.e., 403225 + 227529 = 635^2 + 477^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157687 + ... + 157690.

2⁶³⁰⁷⁵⁴ is an apocalyptic number.

630754 is a deficient number, since it is larger than the sum of its proper divisors (315380).

630754 is a wasteful number, since it uses less digits than its factorization.

630754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315379.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 630754 is about 794.2002266431. The cubic root of 630754 is about 85.7603749485.

The spelling of 630754 in words is "six hundred thirty thousand, seven hundred fifty-four".