630890567 has 4 divisors (see below), whose sum is σ = 631324440. Its totient is φ = 630456696.

The previous prime is 630890549. The next prime is 630890569. The reversal of 630890567 is 765098036.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 630890567 - 2⁶ = 630890503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630890569) 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 3 ways as a sum of consecutive naturals, for example, 214748 + ... + 217665.

It is an arithmetic number, because the mean of its divisors is an integer number (157831110).

Almost surely, 2^630890567 is an apocalyptic number.

630890567 is a deficient number, since it is larger than the sum of its proper divisors (433873).

630890567 is a wasteful number, since it uses less digits than its factorization.

630890567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433872.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 630890567 is about 25117.5350502393. The cubic root of 630890567 is about 857.6656393919.

The spelling of 630890567 in words is "six hundred thirty million, eight hundred ninety thousand, five hundred sixty-seven".