5745639 has 4 divisors (see below), whose sum is σ = 7660856. Its totient is φ = 3830424.

The previous prime is 5745631. The next prime is 5745647. The reversal of 5745639 is 9365475.

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 (5745631) and next prime (5745647).

It is not a de Polignac number, because 5745639 - 2³ = 5745631 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5745597 and 5745606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5745631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 957604 + ... + 957609.

It is an arithmetic number, because the mean of its divisors is an integer number (1915214).

Almost surely, 2^5745639 is an apocalyptic number.

5745639 is a deficient number, since it is larger than the sum of its proper divisors (1915217).

5745639 is a wasteful number, since it uses less digits than its factorization.

5745639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1915216.

The product of its digits is 113400, while the sum is 39.

The square root of 5745639 is about 2397.0062578141. The cubic root of 5745639 is about 179.1070902935.

The spelling of 5745639 in words is "five million, seven hundred forty-five thousand, six hundred thirty-nine".