671530337 has 2 divisors, whose sum is σ = 671530338. Its totient is φ = 671530336.

The previous prime is 671530303. The next prime is 671530373. The reversal of 671530337 is 733035176.

Together with next prime (671530373) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 396766561 + 274763776 = 19919^2 + 16576^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-671530337 is a prime.

It is a super-2 number, since 2×671530337² = 901905987022667138, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 671530297 and 671530306.

It is not a weakly prime, because it can be changed into another prime (671530537) 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, 335765168 + 335765169.

It is an arithmetic number, because the mean of its divisors is an integer number (335765169).

Almost surely, 2^671530337 is an apocalyptic number.

It is an amenable number.

671530337 is a deficient number, since it is larger than the sum of its proper divisors (1).

671530337 is an equidigital number, since it uses as much as digits as its factorization.

671530337 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39690, while the sum is 35.

The square root of 671530337 is about 25913.9023884864. The cubic root of 671530337 is about 875.6997230694.

The spelling of 671530337 in words is "six hundred seventy-one million, five hundred thirty thousand, three hundred thirty-seven".