5436638 has 4 divisors (see below), whose sum is σ = 8154960. Its totient is φ = 2718318.

The previous prime is 5436637. The next prime is 5436643. The reversal of 5436638 is 8366345.

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

It is a junction number, because it is equal to n+sod(n) for n = 5436598 and 5436607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5436637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1359158 + ... + 1359161.

It is an arithmetic number, because the mean of its divisors is an integer number (2038740).

Almost surely, 2^5436638 is an apocalyptic number.

5436638 is a deficient number, since it is larger than the sum of its proper divisors (2718322).

5436638 is a wasteful number, since it uses less digits than its factorization.

5436638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2718321.

The product of its digits is 51840, while the sum is 35.

The square root of 5436638 is about 2331.6599237453. The cubic root of 5436638 is about 175.8369486814.

The spelling of 5436638 in words is "five million, four hundred thirty-six thousand, six hundred thirty-eight".