671447115 has 24 divisors (see below), whose sum is σ = 1165031088. Its totient is φ = 357739200.

The previous prime is 671447111. The next prime is 671447143. The reversal of 671447115 is 511744176.

It is not a de Polignac number, because 671447115 - 2² = 671447111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 671447115.

It is not an unprimeable number, because it can be changed into a prime (671447111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40197 + ... + 54393.

It is an arithmetic number, because the mean of its divisors is an integer number (48542962).

Almost surely, 2^671447115 is an apocalyptic number.

671447115 is a deficient number, since it is larger than the sum of its proper divisors (493583973).

671447115 is a wasteful number, since it uses less digits than its factorization.

671447115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15259 (or 15256 counting only the distinct ones).

The product of its digits is 23520, while the sum is 36.

The square root of 671447115 is about 25912.2965983334. The cubic root of 671447115 is about 875.6635467474.

The spelling of 671447115 in words is "six hundred seventy-one million, four hundred forty-seven thousand, one hundred fifteen".