42373217 has 2 divisors, whose sum is σ = 42373218. Its totient is φ = 42373216.

The previous prime is 42373207. The next prime is 42373259. The reversal of 42373217 is 71237324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32444416 + 9928801 = 5696^2 + 3151^2 .

It is a cyclic number.

It is not a de Polignac number, because 42373217 - 2⁸ = 42372961 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42373217.

It is not a weakly prime, because it can be changed into another prime (42373207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21186608 + 21186609.

It is an arithmetic number, because the mean of its divisors is an integer number (21186609).

Almost surely, 2^42373217 is an apocalyptic number.

It is an amenable number.

42373217 is a deficient number, since it is larger than the sum of its proper divisors (1).

42373217 is an equidigital number, since it uses as much as digits as its factorization.

42373217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7056, while the sum is 29.

The square root of 42373217 is about 6509.4713303002. The cubic root of 42373217 is about 348.6292425876.

The spelling of 42373217 in words is "forty-two million, three hundred seventy-three thousand, two hundred seventeen".