630758939 has 4 divisors (see below), whose sum is σ = 667862424. Its totient is φ = 593655456.

The previous prime is 630758899. The next prime is 630758977. The reversal of 630758939 is 939857036.

630758939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 630758939 - 2⁸ = 630758683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630758839) 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, 18551717 + ... + 18551750.

It is an arithmetic number, because the mean of its divisors is an integer number (166965606).

Almost surely, 2^630758939 is an apocalyptic number.

630758939 is a deficient number, since it is larger than the sum of its proper divisors (37103485).

630758939 is a wasteful number, since it uses less digits than its factorization.

630758939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37103484.

The product of its (nonzero) digits is 1224720, while the sum is 50.

The square root of 630758939 is about 25114.9146723615. The cubic root of 630758939 is about 857.6059879136.

The spelling of 630758939 in words is "six hundred thirty million, seven hundred fifty-eight thousand, nine hundred thirty-nine".