630508473 has 48 divisors (see below), whose sum is σ = 1084302336. Its totient is φ = 345461760.

The previous prime is 630508457. The next prime is 630508477. The reversal of 630508473 is 374805036.

It is a happy number.

It is not a de Polignac number, because 630508473 - 2⁴ = 630508457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (630508477) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 219261 + ... + 222117.

It is an arithmetic number, because the mean of its divisors is an integer number (22589632).

Almost surely, 2^630508473 is an apocalyptic number.

630508473 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

630508473 is a deficient number, since it is larger than the sum of its proper divisors (453793863).

630508473 is a wasteful number, since it uses less digits than its factorization.

630508473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3014 (or 3011 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 630508473 is about 25109.9277776739. The cubic root of 630508473 is about 857.4924582348.

The spelling of 630508473 in words is "six hundred thirty million, five hundred eight thousand, four hundred seventy-three".