42343087 has 2 divisors, whose sum is σ = 42343088. Its totient is φ = 42343086.

The previous prime is 42343079. The next prime is 42343097. The reversal of 42343087 is 78034324.

It is a happy number.

42343087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42343087 - 2³ = 42343079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42343027) 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, 21171543 + 21171544.

It is an arithmetic number, because the mean of its divisors is an integer number (21171544).

Almost surely, 2^42343087 is an apocalyptic number.

42343087 is a deficient number, since it is larger than the sum of its proper divisors (1).

42343087 is an equidigital number, since it uses as much as digits as its factorization.

42343087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 42343087 is about 6507.1565986996. The cubic root of 42343087 is about 348.5465906161.

The spelling of 42343087 in words is "forty-two million, three hundred forty-three thousand, eighty-seven".