5857639 has 4 divisors (see below), whose sum is σ = 6202224. Its totient is φ = 5513056.

The previous prime is 5857633. The next prime is 5857661. The reversal of 5857639 is 9367585.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9367585 = 5 ⋅1873517.

It is a cyclic number.

It is not a de Polignac number, because 5857639 - 2²¹ = 3760487 is a prime.

It is a d-powerful number, because it can be written as 5³ + 8 + 5⁷ + 7⁸ + 6⁵ + 3⁵ + 9⁴ .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5857595 and 5857604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5857633) 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, 172267 + ... + 172300.

It is an arithmetic number, because the mean of its divisors is an integer number (1550556).

Almost surely, 2^5857639 is an apocalyptic number.

5857639 is a deficient number, since it is larger than the sum of its proper divisors (344585).

5857639 is a wasteful number, since it uses less digits than its factorization.

5857639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344584.

The product of its digits is 226800, while the sum is 43.

The square root of 5857639 is about 2420.2559781973. The cubic root of 5857639 is about 180.2633901191.

The spelling of 5857639 in words is "five million, eight hundred fifty-seven thousand, six hundred thirty-nine".