42017329 has 2 divisors, whose sum is σ = 42017330. Its totient is φ = 42017328.

The previous prime is 42017309. The next prime is 42017347. The reversal of 42017329 is 92371024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33373729 + 8643600 = 5777^2 + 2940^2 .

It is a cyclic number.

It is not a de Polignac number, because 42017329 - 2¹⁵ = 41984561 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42017297 and 42017306.

It is not a weakly prime, because it can be changed into another prime (42017309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21008664 + 21008665.

It is an arithmetic number, because the mean of its divisors is an integer number (21008665).

Almost surely, 2^42017329 is an apocalyptic number.

It is an amenable number.

42017329 is a deficient number, since it is larger than the sum of its proper divisors (1).

42017329 is an equidigital number, since it uses as much as digits as its factorization.

42017329 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 42017329 is about 6482.0775219061. The cubic root of 42017329 is about 347.6504643166.

The spelling of 42017329 in words is "forty-two million, seventeen thousand, three hundred twenty-nine".