9397939 has 2 divisors, whose sum is σ = 9397940. Its totient is φ = 9397938.

The previous prime is 9397937. The next prime is 9397981.

It is a happy number.

9397939 is nontrivially palindromic in base 10.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 9397939 - 2¹ = 9397937 is a prime.

Together with 9397937, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 9397892 and 9397901.

It is not a weakly prime, because it can be changed into another prime (9397937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4698969 + 4698970.

It is an arithmetic number, because the mean of its divisors is an integer number (4698970).

Almost surely, 2^9397939 is an apocalyptic number.

9397939 is a deficient number, since it is larger than the sum of its proper divisors (1).

9397939 is an equidigital number, since it uses as much as digits as its factorization.

9397939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 413343, while the sum is 49.

The square root of 9397939 is about 3065.6058128859. The cubic root of 9397939 is about 211.0300040439.

The spelling of 9397939 in words is "nine million, three hundred ninety-seven thousand, nine hundred thirty-nine".