671049416 has 16 divisors (see below), whose sum is σ = 1259574540. Its totient is φ = 335162880.

The previous prime is 671049413. The next prime is 671049433. The reversal of 671049416 is 614940176.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 499701316 + 171348100 = 22354^2 + 13090^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 671049416.

It is not an unprimeable number, because it can be changed into a prime (671049413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37265 + ... + 52256.

Almost surely, 2^671049416 is an apocalyptic number.

It is an amenable number.

671049416 is a deficient number, since it is larger than the sum of its proper divisors (588525124).

671049416 is a wasteful number, since it uses less digits than its factorization.

671049416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90464 (or 90460 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 671049416 is about 25904.6215181770. The cubic root of 671049416 is about 875.4906270499.

The spelling of 671049416 in words is "six hundred seventy-one million, forty-nine thousand, four hundred sixteen".