671887030 has 16 divisors (see below), whose sum is σ = 1210690800. Its totient is φ = 268467232.

The previous prime is 671886991. The next prime is 671887057. The reversal of 671887030 is 30788176.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 26005 + ... + 44944.

It is an arithmetic number, because the mean of its divisors is an integer number (75668175).

Almost surely, 2^671887030 is an apocalyptic number.

671887030 is a deficient number, since it is larger than the sum of its proper divisors (538803770).

671887030 is a wasteful number, since it uses less digits than its factorization.

671887030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71903.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 671887030 is about 25920.7837458669. The cubic root of 671887030 is about 875.8547424613.

The spelling of 671887030 in words is "six hundred seventy-one million, eight hundred eighty-seven thousand, thirty".