4170091 has 2 divisors, whose sum is σ = 4170092. Its totient is φ = 4170090.

The previous prime is 4170079. The next prime is 4170109. The reversal of 4170091 is 1900714.

Together with next prime (4170109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4170091 - 2⁹ = 4169579 is a prime.

It is not a weakly prime, because it can be changed into another prime (4170031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2085045 + 2085046.

It is an arithmetic number, because the mean of its divisors is an integer number (2085046).

Almost surely, 2^4170091 is an apocalyptic number.

4170091 is a deficient number, since it is larger than the sum of its proper divisors (1).

4170091 is an equidigital number, since it uses as much as digits as its factorization.

4170091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 4170091 is about 2042.0800669905. The cubic root of 4170091 is about 160.9589674634.

The spelling of 4170091 in words is "four million, one hundred seventy thousand, ninety-one".