8091427 has 2 divisors, whose sum is σ = 8091428. Its totient is φ = 8091426.

The previous prime is 8091409. The next prime is 8091431. The reversal of 8091427 is 7241908.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8091427 is a prime.

It is not a weakly prime, because it can be changed into another prime (8095427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4045713 + 4045714.

It is an arithmetic number, because the mean of its divisors is an integer number (4045714).

Almost surely, 2^8091427 is an apocalyptic number.

8091427 is a deficient number, since it is larger than the sum of its proper divisors (1).

8091427 is an equidigital number, since it uses as much as digits as its factorization.

8091427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 8091427 is about 2844.5433728456. The cubic root of 8091427 is about 200.7590075605.

The spelling of 8091427 in words is "eight million, ninety-one thousand, four hundred twenty-seven".