671844353 has 2 divisors, whose sum is σ = 671844354. Its totient is φ = 671844352.

The previous prime is 671844347. The next prime is 671844359. The reversal of 671844353 is 353448176.

It is a balanced prime because it is at equal distance from previous prime (671844347) and next prime (671844359).

It can be written as a sum of positive squares in only one way, i.e., 666517489 + 5326864 = 25817^2 + 2308^2 .

It is a cyclic number.

It is not a de Polignac number, because 671844353 - 2¹⁰ = 671843329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 671844353.

It is not a weakly prime, because it can be changed into another prime (671844359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335922176 + 335922177.

It is an arithmetic number, because the mean of its divisors is an integer number (335922177).

Almost surely, 2^671844353 is an apocalyptic number.

It is an amenable number.

671844353 is a deficient number, since it is larger than the sum of its proper divisors (1).

671844353 is an equidigital number, since it uses as much as digits as its factorization.

671844353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 41.

The square root of 671844353 is about 25919.9605130872. The cubic root of 671844353 is about 875.8361978535.

The spelling of 671844353 in words is "six hundred seventy-one million, eight hundred forty-four thousand, three hundred fifty-three".