671117490 has 24 divisors (see below), whose sum is σ = 1744905708. Its totient is φ = 178964640.

The previous prime is 671117467. The next prime is 671117501. The reversal of 671117490 is 94711176.

It can be written as a sum of positive squares in 2 ways, for example, as 574704729 + 96412761 = 23973^2 + 9819^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3728341 + ... + 3728520.

Almost surely, 2^671117490 is an apocalyptic number.

671117490 is an abundant number, since it is smaller than the sum of its proper divisors (1073788218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671117490 is a wasteful number, since it uses less digits than its factorization.

671117490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7456874 (or 7456871 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 36.

The square root of 671117490 is about 25905.9354202854. The cubic root of 671117490 is about 875.5202305000.

The spelling of 671117490 in words is "six hundred seventy-one million, one hundred seventeen thousand, four hundred ninety".