671604914 has 16 divisors (see below), whose sum is σ = 1023017688. Its totient is φ = 330634752.

The previous prime is 671604911. The next prime is 671604919. The reversal of 671604914 is 419406176.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 671587225 + 17689 = 25915^2 + 133^2 .

It is not an unprimeable number, because it can be changed into a prime (671604911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29432 + ... + 47004.

Almost surely, 2^671604914 is an apocalyptic number.

671604914 is a deficient number, since it is larger than the sum of its proper divisors (351412774).

671604914 is a wasteful number, since it uses less digits than its factorization.

671604914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17869.

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

The square root of 671604914 is about 25915.3412865816. The cubic root of 671604914 is about 875.7321388999.

The spelling of 671604914 in words is "six hundred seventy-one million, six hundred four thousand, nine hundred fourteen".