42868907 has 2 divisors, whose sum is σ = 42868908. Its totient is φ = 42868906.

The previous prime is 42868901. The next prime is 42868961. The reversal of 42868907 is 70986824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42868907 - 2⁶ = 42868843 is a prime.

It is not a weakly prime, because it can be changed into another prime (42868901) 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, 21434453 + 21434454.

It is an arithmetic number, because the mean of its divisors is an integer number (21434454).

Almost surely, 2^42868907 is an apocalyptic number.

42868907 is a deficient number, since it is larger than the sum of its proper divisors (1).

42868907 is an equidigital number, since it uses as much as digits as its factorization.

42868907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 42868907 is about 6547.4351466815. The cubic root of 42868907 is about 349.9834196227.

The spelling of 42868907 in words is "forty-two million, eight hundred sixty-eight thousand, nine hundred seven".