42096391 has 2 divisors, whose sum is σ = 42096392. Its totient is φ = 42096390.

The previous prime is 42096361. The next prime is 42096427. The reversal of 42096391 is 19369024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42096391 - 2¹³ = 42088199 is a prime.

It is a super-2 number, since 2×42096391² = 3544212270449762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42096311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21048195 + 21048196.

It is an arithmetic number, because the mean of its divisors is an integer number (21048196).

Almost surely, 2^42096391 is an apocalyptic number.

42096391 is a deficient number, since it is larger than the sum of its proper divisors (1).

42096391 is an equidigital number, since it uses as much as digits as its factorization.

42096391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 42096391 is about 6488.1731635338. The cubic root of 42096391 is about 347.8683801147.

The spelling of 42096391 in words is "forty-two million, ninety-six thousand, three hundred ninety-one".