630885873 has 4 divisors (see below), whose sum is σ = 841181168. Its totient is φ = 420590580.

The previous prime is 630885781. The next prime is 630885887. The reversal of 630885873 is 378588036.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 630885873 - 2⁹ = 630885361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630885373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105147643 + ... + 105147648.

It is an arithmetic number, because the mean of its divisors is an integer number (210295292).

Almost surely, 2^630885873 is an apocalyptic number.

It is an amenable number.

630885873 is a deficient number, since it is larger than the sum of its proper divisors (210295295).

630885873 is a wasteful number, since it uses less digits than its factorization.

630885873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210295294.

The product of its (nonzero) digits is 967680, while the sum is 48.

The square root of 630885873 is about 25117.4416093678. The cubic root of 630885873 is about 857.6635122969.

The spelling of 630885873 in words is "six hundred thirty million, eight hundred eighty-five thousand, eight hundred seventy-three".