42608807 has 2 divisors, whose sum is σ = 42608808. Its totient is φ = 42608806.

The previous prime is 42608779. The next prime is 42608809. The reversal of 42608807 is 70880624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42608807 - 2⁸ = 42608551 is a prime.

Together with 42608809, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42608809) 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, 21304403 + 21304404.

It is an arithmetic number, because the mean of its divisors is an integer number (21304404).

Almost surely, 2^42608807 is an apocalyptic number.

42608807 is a deficient number, since it is larger than the sum of its proper divisors (1).

42608807 is an equidigital number, since it uses as much as digits as its factorization.

42608807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 42608807 is about 6527.5421867652. The cubic root of 42608807 is about 349.2741610834.

The spelling of 42608807 in words is "forty-two million, six hundred eight thousand, eight hundred seven".