5438645 has 4 divisors (see below), whose sum is σ = 6526380. Its totient is φ = 4350912.

The previous prime is 5438639. The next prime is 5438651. The reversal of 5438645 is 5468345.

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

It is an interprime number because it is at equal distance from previous prime (5438639) and next prime (5438651).

It can be written as a sum of positive squares in 2 ways, for example, as 1620529 + 3818116 = 1273^2 + 1954^2 .

It is a cyclic number.

It is not a de Polignac number, because 5438645 - 2⁶ = 5438581 is a prime.

It is a congruent number.

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, 543860 + ... + 543869.

It is an arithmetic number, because the mean of its divisors is an integer number (1631595).

Almost surely, 2^5438645 is an apocalyptic number.

It is an amenable number.

5438645 is a deficient number, since it is larger than the sum of its proper divisors (1087735).

5438645 is a wasteful number, since it uses less digits than its factorization.

5438645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087734.

The product of its digits is 57600, while the sum is 35.

The square root of 5438645 is about 2332.0902641193. The cubic root of 5438645 is about 175.8585834576.

The spelling of 5438645 in words is "five million, four hundred thirty-eight thousand, six hundred forty-five".