630834867 has 24 divisors (see below), whose sum is σ = 1007827184. Its totient is φ = 377711424.

The previous prime is 630834863. The next prime is 630834881. The reversal of 630834867 is 768438036.

630834867 is a `hidden beast` number, since 630 + 8 + 3 + 4 + 8 + 6 + 7 = 666.

It is not a de Polignac number, because 630834867 - 2² = 630834863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (630834863) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68533 + ... + 77190.

Almost surely, 2^630834867 is an apocalyptic number.

630834867 is a deficient number, since it is larger than the sum of its proper divisors (376992317).

630834867 is a wasteful number, since it uses less digits than its factorization.

630834867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145779 (or 145776 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 630834867 is about 25116.4262386192. The cubic root of 630834867 is about 857.6403981511.

The spelling of 630834867 in words is "six hundred thirty million, eight hundred thirty-four thousand, eight hundred sixty-seven".