42353317 has 2 divisors, whose sum is σ = 42353318. Its totient is φ = 42353316.

The previous prime is 42353309. The next prime is 42353329. The reversal of 42353317 is 71335324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42328036 + 25281 = 6506^2 + 159^2 .

It is a cyclic number.

It is not a de Polignac number, because 42353317 - 2³ = 42353309 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 (42353387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21176658 + 21176659.

It is an arithmetic number, because the mean of its divisors is an integer number (21176659).

Almost surely, 2^42353317 is an apocalyptic number.

It is an amenable number.

42353317 is a deficient number, since it is larger than the sum of its proper divisors (1).

42353317 is an equidigital number, since it uses as much as digits as its factorization.

42353317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 28.

The square root of 42353317 is about 6507.9426088434. The cubic root of 42353317 is about 348.5746577282.

The spelling of 42353317 in words is "forty-two million, three hundred fifty-three thousand, three hundred seventeen".