630806601 has 4 divisors (see below), whose sum is σ = 841075472. Its totient is φ = 420537732.

The previous prime is 630806597. The next prime is 630806611. The reversal of 630806601 is 106608036.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 630806601 - 2² = 630806597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630806611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105134431 + ... + 105134436.

It is an arithmetic number, because the mean of its divisors is an integer number (210268868).

Almost surely, 2^630806601 is an apocalyptic number.

It is an amenable number.

630806601 is a deficient number, since it is larger than the sum of its proper divisors (210268871).

630806601 is a wasteful number, since it uses less digits than its factorization.

630806601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210268870.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 630806601 is about 25115.8635328352. The cubic root of 630806601 is about 857.6275884462.

The spelling of 630806601 in words is "six hundred thirty million, eight hundred six thousand, six hundred one".