630611479 has 2 divisors, whose sum is σ = 630611480. Its totient is φ = 630611478.

The previous prime is 630611477. The next prime is 630611491. The reversal of 630611479 is 974116036.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 630611479 - 2¹ = 630611477 is a prime.

Together with 630611477, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630611477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315305739 + 315305740.

It is an arithmetic number, because the mean of its divisors is an integer number (315305740).

Almost surely, 2^630611479 is an apocalyptic number.

630611479 is a deficient number, since it is larger than the sum of its proper divisors (1).

630611479 is an equidigital number, since it uses as much as digits as its factorization.

630611479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 630611479 is about 25111.9787949895. The cubic root of 630611479 is about 857.5391517963.

The spelling of 630611479 in words is "six hundred thirty million, six hundred eleven thousand, four hundred seventy-nine".