42310769 has 2 divisors, whose sum is σ = 42310770. Its totient is φ = 42310768.

The previous prime is 42310747. The next prime is 42310771. The reversal of 42310769 is 96701324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24880144 + 17430625 = 4988^2 + 4175^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42310769 is a prime.

It is a super-2 number, since 2×42310769² = 3580402346742722, which contains 22 as substring.

Together with 42310771, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42310789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21155384 + 21155385.

It is an arithmetic number, because the mean of its divisors is an integer number (21155385).

Almost surely, 2^42310769 is an apocalyptic number.

It is an amenable number.

42310769 is a deficient number, since it is larger than the sum of its proper divisors (1).

42310769 is an equidigital number, since it uses as much as digits as its factorization.

42310769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 42310769 is about 6504.6728587993. The cubic root of 42310769 is about 348.4578929755.

The spelling of 42310769 in words is "forty-two million, three hundred ten thousand, seven hundred sixty-nine".