630387 has 12 divisors (see below), whose sum is σ = 921960. Its totient is φ = 415008.

The previous prime is 630353. The next prime is 630391. The reversal of 630387 is 783036.

It is a happy number.

It is not a de Polignac number, because 630387 - 2¹⁸ = 368243 is a prime.

It is an alternating number because its digits alternate between even and odd.

630387 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 630387.

It is not an unprimeable number, because it can be changed into a prime (630307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 408 + ... + 1194.

It is an arithmetic number, because the mean of its divisors is an integer number (76830).

2⁶³⁰³⁸⁷ is an apocalyptic number.

630387 is a deficient number, since it is larger than the sum of its proper divisors (291573).

630387 is a wasteful number, since it uses less digits than its factorization.

630387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882 (or 879 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 630387 is about 793.9691429772. The cubic root of 630387 is about 85.7437386878.

The spelling of 630387 in words is "six hundred thirty thousand, three hundred eighty-seven".