42299687 has 2 divisors, whose sum is σ = 42299688. Its totient is φ = 42299686.

The previous prime is 42299651. The next prime is 42299693. The reversal of 42299687 is 78699224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42299687 - 2⁸ = 42299431 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42299627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21149843 + 21149844.

It is an arithmetic number, because the mean of its divisors is an integer number (21149844).

Almost surely, 2^42299687 is an apocalyptic number.

42299687 is a deficient number, since it is larger than the sum of its proper divisors (1).

42299687 is an equidigital number, since it uses as much as digits as its factorization.

42299687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 47.

The square root of 42299687 is about 6503.8209538701. The cubic root of 42299687 is about 348.4274677224.

The spelling of 42299687 in words is "forty-two million, two hundred ninety-nine thousand, six hundred eighty-seven".