5728985 has 4 divisors (see below), whose sum is σ = 6874788. Its totient is φ = 4583184.

The previous prime is 5728939. The next prime is 5728991. The reversal of 5728985 is 5898275.

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

It can be written as a sum of positive squares in 2 ways, for example, as 994009 + 4734976 = 997^2 + 2176^2 .

It is a cyclic number.

It is not a de Polignac number, because 5728985 - 2⁸ = 5728729 is a prime.

It is a Duffinian number.

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, 572894 + ... + 572903.

It is an arithmetic number, because the mean of its divisors is an integer number (1718697).

Almost surely, 2^5728985 is an apocalyptic number.

It is an amenable number.

5728985 is a deficient number, since it is larger than the sum of its proper divisors (1145803).

5728985 is a wasteful number, since it uses less digits than its factorization.

5728985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145802.

The product of its digits is 201600, while the sum is 44.

The square root of 5728985 is about 2393.5298201610. The cubic root of 5728985 is about 178.9338727681.

The spelling of 5728985 in words is "five million, seven hundred twenty-eight thousand, nine hundred eighty-five".