671471497 has 2 divisors, whose sum is σ = 671471498. Its totient is φ = 671471496.

The previous prime is 671471459. The next prime is 671471503. The reversal of 671471497 is 794174176.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 522533881 + 148937616 = 22859^2 + 12204^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-671471497 is a prime.

It is not a weakly prime, because it can be changed into another prime (671471417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335735748 + 335735749.

It is an arithmetic number, because the mean of its divisors is an integer number (335735749).

Almost surely, 2^671471497 is an apocalyptic number.

It is an amenable number.

671471497 is a deficient number, since it is larger than the sum of its proper divisors (1).

671471497 is an equidigital number, since it uses as much as digits as its factorization.

671471497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 296352, while the sum is 46.

The square root of 671471497 is about 25912.7670656763. The cubic root of 671471497 is about 875.6741458299.

It can be divided in two parts, 67147 and 1497, that added together give a square (68644 = 262²).

The spelling of 671471497 in words is "six hundred seventy-one million, four hundred seventy-one thousand, four hundred ninety-seven".