630020673 has 10 divisors (see below), whose sum is σ = 941142114. Its totient is φ = 420013728.

The previous prime is 630020653. The next prime is 630020689. The reversal of 630020673 is 376020036.

630020673 is a `hidden beast` number, since 630 + 0 + 20 + 6 + 7 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 369908289 + 260112384 = 19233^2 + 16128^2 .

It is not a de Polignac number, because 630020673 - 2⁵ = 630020641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (630020603) 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 9 ways as a sum of consecutive naturals, for example, 3888936 + ... + 3889097.

Almost surely, 2^630020673 is an apocalyptic number.

It is an amenable number.

630020673 is a deficient number, since it is larger than the sum of its proper divisors (311121441).

630020673 is an equidigital number, since it uses as much as digits as its factorization.

630020673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7778045 (or 7778036 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 27.

The square root of 630020673 is about 25100.2126086613. The cubic root of 630020673 is about 857.2712649410.

The spelling of 630020673 in words is "six hundred thirty million, twenty thousand, six hundred seventy-three".