6670291 has 2 divisors, whose sum is σ = 6670292. Its totient is φ = 6670290.

The previous prime is 6670271. The next prime is 6670297. The reversal of 6670291 is 1920766.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6670291 - 2⁵ = 6670259 is a prime.

It is not a weakly prime, because it can be changed into another prime (6670297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3335145 + 3335146.

It is an arithmetic number, because the mean of its divisors is an integer number (3335146).

Almost surely, 2^6670291 is an apocalyptic number.

6670291 is a deficient number, since it is larger than the sum of its proper divisors (1).

6670291 is an equidigital number, since it uses as much as digits as its factorization.

6670291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 6670291 is about 2582.6906512395. The cubic root of 6670291 is about 188.2413058799.

The spelling of 6670291 in words is "six million, six hundred seventy thousand, two hundred ninety-one".