630872195 has 4 divisors (see below), whose sum is σ = 757046640. Its totient is φ = 504697752.

The previous prime is 630872173. The next prime is 630872233. The reversal of 630872195 is 591278036.

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 630872195 - 2¹⁴ = 630855811 is a prime.

It is an unprimeable number.

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, 63087215 + ... + 63087224.

It is an arithmetic number, because the mean of its divisors is an integer number (189261660).

Almost surely, 2^630872195 is an apocalyptic number.

630872195 is a deficient number, since it is larger than the sum of its proper divisors (126174445).

630872195 is a wasteful number, since it uses less digits than its factorization.

630872195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126174444.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 630872195 is about 25117.1693269763. The cubic root of 630872195 is about 857.6573140251.

The spelling of 630872195 in words is "six hundred thirty million, eight hundred seventy-two thousand, one hundred ninety-five".