5781205 has 8 divisors (see below), whose sum is σ = 7106904. Its totient is φ = 4512000.

The previous prime is 5781169. The next prime is 5781239. The reversal of 5781205 is 5021875.

It can be written as a sum of positive squares in 4 ways, for example, as 88209 + 5692996 = 297^2 + 2386^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5781205 - 2⁷ = 5781077 is a prime.

It is a Duffinian number.

5781205 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13896 + ... + 14305.

It is an arithmetic number, because the mean of its divisors is an integer number (888363).

Almost surely, 2^5781205 is an apocalyptic number.

It is an amenable number.

5781205 is a deficient number, since it is larger than the sum of its proper divisors (1325699).

5781205 is a wasteful number, since it uses less digits than its factorization.

5781205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28247.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 5781205 is about 2404.4136499363. The cubic root of 5781205 is about 179.4758931321.

The spelling of 5781205 in words is "five million, seven hundred eighty-one thousand, two hundred five".