5398657 has 6 divisors (see below), whose sum is σ = 5934194. Its totient is φ = 4907760.

The previous prime is 5398597. The next prime is 5398697. The reversal of 5398657 is 7568935.

It can be written as a sum of positive squares in only one way, i.e., 3538161 + 1860496 = 1881^2 + 1364^2 .

It is not a de Polignac number, because 5398657 - 2⁷ = 5398529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5398697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22188 + ... + 22429.

Almost surely, 2^5398657 is an apocalyptic number.

It is an amenable number.

5398657 is a deficient number, since it is larger than the sum of its proper divisors (535537).

5398657 is a wasteful number, since it uses less digits than its factorization.

5398657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44639 (or 44628 counting only the distinct ones).

The product of its digits is 226800, while the sum is 43.

The square root of 5398657 is about 2323.5010221646. The cubic root of 5398657 is about 175.4265188060.

The spelling of 5398657 in words is "five million, three hundred ninety-eight thousand, six hundred fifty-seven".