9867457 has 2 divisors, whose sum is σ = 9867458. Its totient is φ = 9867456.

The previous prime is 9867449. The next prime is 9867467. The reversal of 9867457 is 7547689.

It is a happy number.

9867457 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6713281 + 3154176 = 2591^2 + 1776^2 .

It is a cyclic number.

It is not a de Polignac number, because 9867457 - 2³ = 9867449 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (9867427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4933728 + 4933729.

It is an arithmetic number, because the mean of its divisors is an integer number (4933729).

Almost surely, 2^9867457 is an apocalyptic number.

It is an amenable number.

9867457 is a deficient number, since it is larger than the sum of its proper divisors (1).

9867457 is an equidigital number, since it uses as much as digits as its factorization.

9867457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 46.

The square root of 9867457 is about 3141.2508654993. The cubic root of 9867457 is about 214.4873815982.

The spelling of 9867457 in words is "nine million, eight hundred sixty-seven thousand, four hundred fifty-seven".