5636738 has 4 divisors (see below), whose sum is σ = 8455110. Its totient is φ = 2818368.

The previous prime is 5636731. The next prime is 5636747. The reversal of 5636738 is 8376365.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8376365 = 5 ⋅1675273.

It can be written as a sum of positive squares in only one way, i.e., 5303809 + 332929 = 2303^2 + 577^2 .

It is not an unprimeable number, because it can be changed into a prime (5636731) 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, 1409183 + ... + 1409186.

Almost surely, 2^5636738 is an apocalyptic number.

5636738 is a deficient number, since it is larger than the sum of its proper divisors (2818372).

5636738 is a wasteful number, since it uses less digits than its factorization.

5636738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2818371.

The product of its digits is 90720, while the sum is 38.

The square root of 5636738 is about 2374.1815431849. The cubic root of 5636738 is about 177.9682853904.

The spelling of 5636738 in words is "five million, six hundred thirty-six thousand, seven hundred thirty-eight".