42307207 has 2 divisors, whose sum is σ = 42307208. Its totient is φ = 42307206.

The previous prime is 42307171. The next prime is 42307231. The reversal of 42307207 is 70270324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42307207 - 2¹⁵ = 42274439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42307247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21153603 + 21153604.

It is an arithmetic number, because the mean of its divisors is an integer number (21153604).

Almost surely, 2^42307207 is an apocalyptic number.

42307207 is a deficient number, since it is larger than the sum of its proper divisors (1).

42307207 is an equidigital number, since it uses as much as digits as its factorization.

42307207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 42307207 is about 6504.3990498739. The cubic root of 42307207 is about 348.4481142054.

The spelling of 42307207 in words is "forty-two million, three hundred seven thousand, two hundred seven".