9942269 has 2 divisors, whose sum is σ = 9942270. Its totient is φ = 9942268.

The previous prime is 9942223. The next prime is 9942271. The reversal of 9942269 is 9622499.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8922169 + 1020100 = 2987^2 + 1010^2 .

It is an emirp because it is prime and its reverse (9622499) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9942269 - 2⁸ = 9942013 is a prime.

It is a super-2 number, since 2×9942269² = 197697425736722, which contains 22 as substring.

Together with 9942271, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9942299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4971134 + 4971135.

It is an arithmetic number, because the mean of its divisors is an integer number (4971135).

Almost surely, 2^9942269 is an apocalyptic number.

It is an amenable number.

9942269 is a deficient number, since it is larger than the sum of its proper divisors (1).

9942269 is an equidigital number, since it uses as much as digits as its factorization.

9942269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 41.

The square root of 9942269 is about 3153.1363751034. The cubic root of 9942269 is about 215.0280763767.

The spelling of 9942269 in words is "nine million, nine hundred forty-two thousand, two hundred sixty-nine".