630622319 has 4 divisors (see below), whose sum is σ = 638604960. Its totient is φ = 622639680.

The previous prime is 630622301. The next prime is 630622351. The reversal of 630622319 is 913226036.

630622319 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 630622319 - 2¹⁶ = 630556783 is a prime.

It is a super-2 number, since 2×630622319² = 795369018441875522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630622379) 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, 3991202 + ... + 3991359.

It is an arithmetic number, because the mean of its divisors is an integer number (159651240).

Almost surely, 2^630622319 is an apocalyptic number.

630622319 is a deficient number, since it is larger than the sum of its proper divisors (7982641).

630622319 is an equidigital number, since it uses as much as digits as its factorization.

630622319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7982640.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 630622319 is about 25112.1946273120. The cubic root of 630622319 is about 857.5440653717.

The spelling of 630622319 in words is "six hundred thirty million, six hundred twenty-two thousand, three hundred nineteen".