40691267 has 2 divisors, whose sum is σ = 40691268. Its totient is φ = 40691266.

The previous prime is 40691249. The next prime is 40691269. The reversal of 40691267 is 76219604.

40691267 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40691267 - 2⁸ = 40691011 is a prime.

Together with 40691269, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40691269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20345633 + 20345634.

It is an arithmetic number, because the mean of its divisors is an integer number (20345634).

Almost surely, 2^40691267 is an apocalyptic number.

40691267 is a deficient number, since it is larger than the sum of its proper divisors (1).

40691267 is an equidigital number, since it uses as much as digits as its factorization.

40691267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 40691267 is about 6378.9706849930. The cubic root of 40691267 is about 343.9540315130.

The spelling of 40691267 in words is "forty million, six hundred ninety-one thousand, two hundred sixty-seven".