630877793 has 12 divisors (see below), whose sum is σ = 790331220. Its totient is φ = 499155552.

The previous prime is 630877789. The next prime is 630877801. The reversal of 630877793 is 397778036.

630877793 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 349577809 + 281299984 = 18697^2 + 16772^2 .

It is not a de Polignac number, because 630877793 - 2² = 630877789 is a prime.

It is not an unprimeable number, because it can be changed into a prime (630877703) 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, 494558 + ... + 495831.

It is an arithmetic number, because the mean of its divisors is an integer number (65860935).

Almost surely, 2^630877793 is an apocalyptic number.

It is an amenable number.

630877793 is a deficient number, since it is larger than the sum of its proper divisors (159453427).

630877793 is a wasteful number, since it uses less digits than its factorization.

630877793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990416 (or 990409 counting only the distinct ones).

The product of its (nonzero) digits is 1333584, while the sum is 50.

The square root of 630877793 is about 25117.2807644458. The cubic root of 630877793 is about 857.6598508049.

The spelling of 630877793 in words is "six hundred thirty million, eight hundred seventy-seven thousand, seven hundred ninety-three".