630508461 has 16 divisors (see below), whose sum is σ = 971051328. Its totient is φ = 359648000.

The previous prime is 630508457. The next prime is 630508477. The reversal of 630508461 is 164805036.

It is a cyclic number.

It is not a de Polignac number, because 630508461 - 2² = 630508457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630508481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 561390 + ... + 562511.

It is an arithmetic number, because the mean of its divisors is an integer number (60690708).

Almost surely, 2^630508461 is an apocalyptic number.

It is an amenable number.

630508461 is a deficient number, since it is larger than the sum of its proper divisors (340542867).

630508461 is a wasteful number, since it uses less digits than its factorization.

630508461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123932.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 630508461 is about 25109.9275387246. The cubic root of 630508461 is about 857.4924527948.

The spelling of 630508461 in words is "six hundred thirty million, five hundred eight thousand, four hundred sixty-one".