671835097 has 2 divisors, whose sum is σ = 671835098. Its totient is φ = 671835096.

The previous prime is 671835091. The next prime is 671835161. The reversal of 671835097 is 790538176.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 493906176 + 177928921 = 22224^2 + 13339^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-671835097 is a prime.

It is not a weakly prime, because it can be changed into another prime (671835091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335917548 + 335917549.

It is an arithmetic number, because the mean of its divisors is an integer number (335917549).

Almost surely, 2^671835097 is an apocalyptic number.

It is an amenable number.

671835097 is a deficient number, since it is larger than the sum of its proper divisors (1).

671835097 is an equidigital number, since it uses as much as digits as its factorization.

671835097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 46.

The square root of 671835097 is about 25919.7819628175. The cubic root of 671835097 is about 875.8321757031.

The spelling of 671835097 in words is "six hundred seventy-one million, eight hundred thirty-five thousand, ninety-seven".