42846091 has 2 divisors, whose sum is σ = 42846092. Its totient is φ = 42846090.

The previous prime is 42846077. The next prime is 42846131. The reversal of 42846091 is 19064824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42846091 - 2⁵ = 42846059 is a prime.

It is not a weakly prime, because it can be changed into another prime (42846191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21423045 + 21423046.

It is an arithmetic number, because the mean of its divisors is an integer number (21423046).

Almost surely, 2^42846091 is an apocalyptic number.

42846091 is a deficient number, since it is larger than the sum of its proper divisors (1).

42846091 is an equidigital number, since it uses as much as digits as its factorization.

42846091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 42846091 is about 6545.6925531222. The cubic root of 42846091 is about 349.9213183677.

The spelling of 42846091 in words is "forty-two million, eight hundred forty-six thousand, ninety-one".