630949 has 8 divisors (see below), whose sum is σ = 705600. Its totient is φ = 559200.

The previous prime is 630941. The next prime is 630967. The reversal of 630949 is 949036.

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

It is a cyclic number.

It is not a de Polignac number, because 630949 - 2³ = 630941 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 630949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249 + ... + 1150.

It is an arithmetic number, because the mean of its divisors is an integer number (88200).

2⁶³⁰⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

630949 is a deficient number, since it is larger than the sum of its proper divisors (74651).

630949 is a wasteful number, since it uses less digits than its factorization.

630949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 630949 is about 794.3229821678. The cubic root of 630949 is about 85.7692117533.

The spelling of 630949 in words is "six hundred thirty thousand, nine hundred forty-nine".