630312479 has 4 divisors (see below), whose sum is σ = 663486840. Its totient is φ = 597138120.

The previous prime is 630312469. The next prime is 630312503. The reversal of 630312479 is 974213036.

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 630312479 - 2²⁰ = 629263903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630312469) 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, 16587152 + ... + 16587189.

It is an arithmetic number, because the mean of its divisors is an integer number (165871710).

Almost surely, 2^630312479 is an apocalyptic number.

630312479 is a deficient number, since it is larger than the sum of its proper divisors (33174361).

630312479 is a wasteful number, since it uses less digits than its factorization.

630312479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33174360.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 630312479 is about 25106.0247550264. The cubic root of 630312479 is about 857.4035983165.

The spelling of 630312479 in words is "six hundred thirty million, three hundred twelve thousand, four hundred seventy-nine".