42923017 has 2 divisors, whose sum is σ = 42923018. Its totient is φ = 42923016.

The previous prime is 42922993. The next prime is 42923021. The reversal of 42923017 is 71032924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30735936 + 12187081 = 5544^2 + 3491^2 .

It is a cyclic number.

It is not a de Polignac number, because 42923017 - 2⁷ = 42922889 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42923047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21461508 + 21461509.

It is an arithmetic number, because the mean of its divisors is an integer number (21461509).

Almost surely, 2^42923017 is an apocalyptic number.

It is an amenable number.

42923017 is a deficient number, since it is larger than the sum of its proper divisors (1).

42923017 is an equidigital number, since it uses as much as digits as its factorization.

42923017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 42923017 is about 6551.5659960043. The cubic root of 42923017 is about 350.1306097576.

The spelling of 42923017 in words is "forty-two million, nine hundred twenty-three thousand, seventeen".