42814769 has 2 divisors, whose sum is σ = 42814770. Its totient is φ = 42814768.

The previous prime is 42814747. The next prime is 42814777. The reversal of 42814769 is 96741824.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39250225 + 3564544 = 6265^2 + 1888^2 .

It is a cyclic number.

It is not a de Polignac number, because 42814769 - 2¹² = 42810673 is a prime.

It is a super-2 number, since 2×42814769² = 3666208889046722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (42814729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21407384 + 21407385.

It is an arithmetic number, because the mean of its divisors is an integer number (21407385).

Almost surely, 2^42814769 is an apocalyptic number.

It is an amenable number.

42814769 is a deficient number, since it is larger than the sum of its proper divisors (1).

42814769 is an equidigital number, since it uses as much as digits as its factorization.

42814769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 41.

The square root of 42814769 is about 6543.2995499213. The cubic root of 42814769 is about 349.8360293162.

The spelling of 42814769 in words is "forty-two million, eight hundred fourteen thousand, seven hundred sixty-nine".