42317829 has 8 divisors (see below), whose sum is σ = 62693120. Its totient is φ = 28211868.

The previous prime is 42317827. The next prime is 42317831. The reversal of 42317829 is 92871324.

It is an interprime number because it is at equal distance from previous prime (42317827) and next prime (42317831).

It is not a de Polignac number, because 42317829 - 2¹ = 42317827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42317793 and 42317802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42317827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 783637 + ... + 783690.

It is an arithmetic number, because the mean of its divisors is an integer number (7836640).

Almost surely, 2^42317829 is an apocalyptic number.

It is an amenable number.

42317829 is a deficient number, since it is larger than the sum of its proper divisors (20375291).

42317829 is a wasteful number, since it uses less digits than its factorization.

42317829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1567336 (or 1567330 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 42317829 is about 6505.2155229477. The cubic root of 42317829 is about 348.4772731945.

The spelling of 42317829 in words is "forty-two million, three hundred seventeen thousand, eight hundred twenty-nine".