630668067 has 4 divisors (see below), whose sum is σ = 840890760. Its totient is φ = 420445376.

The previous prime is 630668039. The next prime is 630668107. The reversal of 630668067 is 760866036.

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 630668067 - 2⁸ = 630667811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (630668167) 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, 105111342 + ... + 105111347.

It is an arithmetic number, because the mean of its divisors is an integer number (210222690).

Almost surely, 2^630668067 is an apocalyptic number.

630668067 is a deficient number, since it is larger than the sum of its proper divisors (210222693).

630668067 is a wasteful number, since it uses less digits than its factorization.

630668067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210222692.

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 630668067 is about 25113.1054829943. The cubic root of 630668067 is about 857.5648014902.

The spelling of 630668067 in words is "six hundred thirty million, six hundred sixty-eight thousand, sixty-seven".