7428917 has 2 divisors, whose sum is σ = 7428918. Its totient is φ = 7428916.

The previous prime is 7428899. The next prime is 7428929. The reversal of 7428917 is 7198247.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6584356 + 844561 = 2566^2 + 919^2 .

It is a cyclic number.

It is not a de Polignac number, because 7428917 - 2¹⁴ = 7412533 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7428937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3714458 + 3714459.

It is an arithmetic number, because the mean of its divisors is an integer number (3714459).

Almost surely, 2^7428917 is an apocalyptic number.

It is an amenable number.

7428917 is a deficient number, since it is larger than the sum of its proper divisors (1).

7428917 is an equidigital number, since it uses as much as digits as its factorization.

7428917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 38.

The square root of 7428917 is about 2725.6039697652. The cubic root of 7428917 is about 195.1230168332.

The spelling of 7428917 in words is "seven million, four hundred twenty-eight thousand, nine hundred seventeen".