42170383 has 2 divisors, whose sum is σ = 42170384. Its totient is φ = 42170382.

The previous prime is 42170311. The next prime is 42170407. The reversal of 42170383 is 38307124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42170383 - 2¹³ = 42162191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42170083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21085191 + 21085192.

It is an arithmetic number, because the mean of its divisors is an integer number (21085192).

Almost surely, 2^42170383 is an apocalyptic number.

42170383 is a deficient number, since it is larger than the sum of its proper divisors (1).

42170383 is an equidigital number, since it uses as much as digits as its factorization.

42170383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 42170383 is about 6493.8727274254. The cubic root of 42170383 is about 348.0720746254.

The spelling of 42170383 in words is "forty-two million, one hundred seventy thousand, three hundred eighty-three".