671987462 has 16 divisors (see below), whose sum is σ = 1028738880. Its totient is φ = 329115432.

The previous prime is 671987453. The next prime is 671987479. The reversal of 671987462 is 264789176.

It is a self number, because there is not a number n which added to its sum of digits gives 671987462.

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, 23333 + ... + 43455.

It is an arithmetic number, because the mean of its divisors is an integer number (64296180).

Almost surely, 2^671987462 is an apocalyptic number.

671987462 is a deficient number, since it is larger than the sum of its proper divisors (356751418).

671987462 is a wasteful number, since it uses less digits than its factorization.

671987462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20467.

The product of its digits is 1016064, while the sum is 50.

The square root of 671987462 is about 25922.7209605782. The cubic root of 671987462 is about 875.8983804823.

The spelling of 671987462 in words is "six hundred seventy-one million, nine hundred eighty-seven thousand, four hundred sixty-two".