7942469 has 2 divisors, whose sum is σ = 7942470. Its totient is φ = 7942468.

The previous prime is 7942447. The next prime is 7942471. The reversal of 7942469 is 9642497.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7219969 + 722500 = 2687^2 + 850^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7942469 is a prime.

It is a super-2 number, since 2×7942469² = 126165627631922, which contains 22 as substring.

Together with 7942471, 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 (7942499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3971234 + 3971235.

It is an arithmetic number, because the mean of its divisors is an integer number (3971235).

Almost surely, 2^7942469 is an apocalyptic number.

It is an amenable number.

7942469 is a deficient number, since it is larger than the sum of its proper divisors (1).

7942469 is an equidigital number, since it uses as much as digits as its factorization.

7942469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 41.

The square root of 7942469 is about 2818.2386343246. The cubic root of 7942469 is about 199.5194211448.

The spelling of 7942469 in words is "seven million, nine hundred forty-two thousand, four hundred sixty-nine".