42347873 has 2 divisors, whose sum is σ = 42347874. Its totient is φ = 42347872.

The previous prime is 42347849. The next prime is 42347897. The reversal of 42347873 is 37874324.

It is a balanced prime because it is at equal distance from previous prime (42347849) and next prime (42347897).

It can be written as a sum of positive squares in only one way, i.e., 25472209 + 16875664 = 5047^2 + 4108^2 .

It is a cyclic number.

It is not a de Polignac number, because 42347873 - 2¹⁴ = 42331489 is a prime.

It is not a weakly prime, because it can be changed into another prime (42347803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21173936 + 21173937.

It is an arithmetic number, because the mean of its divisors is an integer number (21173937).

Almost surely, 2^42347873 is an apocalyptic number.

It is an amenable number.

42347873 is a deficient number, since it is larger than the sum of its proper divisors (1).

42347873 is an equidigital number, since it uses as much as digits as its factorization.

42347873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 38.

The square root of 42347873 is about 6507.5243372576. The cubic root of 42347873 is about 348.5597220877.

The spelling of 42347873 in words is "forty-two million, three hundred forty-seven thousand, eight hundred seventy-three".