5438945 has 4 divisors (see below), whose sum is σ = 6526740. Its totient is φ = 4351152.

The previous prime is 5438903. The next prime is 5438969. The reversal of 5438945 is 5498345.

It is a happy number.

5438945 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5498345 = 5 ⋅1099669.

It can be written as a sum of positive squares in 2 ways, for example, as 4157521 + 1281424 = 2039^2 + 1132^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5438945 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5438899 and 5438908.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 543890 + ... + 543899.

It is an arithmetic number, because the mean of its divisors is an integer number (1631685).

Almost surely, 2^5438945 is an apocalyptic number.

It is an amenable number.

5438945 is a deficient number, since it is larger than the sum of its proper divisors (1087795).

5438945 is a wasteful number, since it uses less digits than its factorization.

5438945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087794.

The product of its digits is 86400, while the sum is 38.

The square root of 5438945 is about 2332.1545832127. The cubic root of 5438945 is about 175.8618168981.

The spelling of 5438945 in words is "five million, four hundred thirty-eight thousand, nine hundred forty-five".