42969023 has 2 divisors, whose sum is σ = 42969024. Its totient is φ = 42969022.

The previous prime is 42969019. The next prime is 42969077. The reversal of 42969023 is 32096924.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42969023 - 2² = 42969019 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42969323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21484511 + 21484512.

It is an arithmetic number, because the mean of its divisors is an integer number (21484512).

Almost surely, 2^42969023 is an apocalyptic number.

42969023 is a deficient number, since it is larger than the sum of its proper divisors (1).

42969023 is an equidigital number, since it uses as much as digits as its factorization.

42969023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 42969023 is about 6555.0761246533. The cubic root of 42969023 is about 350.2556581066.

The spelling of 42969023 in words is "forty-two million, nine hundred sixty-nine thousand, twenty-three".