5398538 has 4 divisors (see below), whose sum is σ = 8097810. Its totient is φ = 2699268.

The previous prime is 5398531. The next prime is 5398543. The reversal of 5398538 is 8358935.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5396329 + 2209 = 2323^2 + 47^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5398495 and 5398504.

It is not an unprimeable number, because it can be changed into a prime (5398531) 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 as a sum of consecutive naturals, namely, 1349633 + ... + 1349636.

Almost surely, 2^5398538 is an apocalyptic number.

5398538 is a deficient number, since it is larger than the sum of its proper divisors (2699272).

5398538 is a wasteful number, since it uses less digits than its factorization.

5398538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2699271.

The product of its digits is 129600, while the sum is 41.

The square root of 5398538 is about 2323.4754141157. The cubic root of 5398538 is about 175.4252298491.

The spelling of 5398538 in words is "five million, three hundred ninety-eight thousand, five hundred thirty-eight".