630470017 has 4 divisors (see below), whose sum is σ = 630842800. Its totient is φ = 630097236.

The previous prime is 630470003. The next prime is 630470051. The reversal of 630470017 is 710074036.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-630470017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630470717) 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, 183843 + ... + 187240.

It is an arithmetic number, because the mean of its divisors is an integer number (157710700).

Almost surely, 2^630470017 is an apocalyptic number.

It is an amenable number.

630470017 is a deficient number, since it is larger than the sum of its proper divisors (372783).

630470017 is a wasteful number, since it uses less digits than its factorization.

630470017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372782.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 630470017 is about 25109.1620130979. The cubic root of 630470017 is about 857.4750244747.

The spelling of 630470017 in words is "six hundred thirty million, four hundred seventy thousand, seventeen".