671451370 has 16 divisors (see below), whose sum is σ = 1208950920. Its totient is φ = 268505344.

The previous prime is 671451349. The next prime is 671451379. The reversal of 671451370 is 73154176.

It can be written as a sum of positive squares in 4 ways, for example, as 663938289 + 7513081 = 25767^2 + 2741^2 .

It is not an unprimeable number, because it can be changed into a prime (671451379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40926 + ... + 54934.

Almost surely, 2^671451370 is an apocalyptic number.

671451370 is a deficient number, since it is larger than the sum of its proper divisors (537499550).

671451370 is a wasteful number, since it uses less digits than its factorization.

671451370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18809.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 671451370 is about 25912.3787020798. The cubic root of 671451370 is about 875.6653964540.

The spelling of 671451370 in words is "six hundred seventy-one million, four hundred fifty-one thousand, three hundred seventy".