630664343 has 4 divisors (see below), whose sum is σ = 630757488. Its totient is φ = 630571200.

The previous prime is 630664303. The next prime is 630664369. The reversal of 630664343 is 343466036.

It is a happy number.

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 630664343 - 2⁸ = 630664087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630664303) 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, 35546 + ... + 50247.

It is an arithmetic number, because the mean of its divisors is an integer number (157689372).

Almost surely, 2^630664343 is an apocalyptic number.

630664343 is a deficient number, since it is larger than the sum of its proper divisors (93145).

630664343 is an equidigital number, since it uses as much as digits as its factorization.

630664343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93144.

The product of its (nonzero) digits is 93312, while the sum is 35.

The square root of 630664343 is about 25113.0313383311. The cubic root of 630664343 is about 857.5631135565.

The spelling of 630664343 in words is "six hundred thirty million, six hundred sixty-four thousand, three hundred forty-three".