7904417 has 2 divisors, whose sum is σ = 7904418. Its totient is φ = 7904416.

The previous prime is 7904381. The next prime is 7904419. The reversal of 7904417 is 7144097.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7447441 + 456976 = 2729^2 + 676^2 .

It is a cyclic number.

It is not a de Polignac number, because 7904417 - 2⁸ = 7904161 is a prime.

Together with 7904419, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7904419) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3952208 + 3952209.

It is an arithmetic number, because the mean of its divisors is an integer number (3952209).

Almost surely, 2^7904417 is an apocalyptic number.

It is an amenable number.

7904417 is a deficient number, since it is larger than the sum of its proper divisors (1).

7904417 is an equidigital number, since it uses as much as digits as its factorization.

7904417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 7904417 is about 2811.4795037489. The cubic root of 7904417 is about 199.2002815139.

The spelling of 7904417 in words is "seven million, nine hundred four thousand, four hundred seventeen".