5820397405 has 24 divisors (see below), whose sum is σ = 7244761176. Its totient is φ = 4488819840.

The previous prime is 5820397403. The next prime is 5820397481. The reversal of 5820397405 is 5047930285.

It can be written as a sum of positive squares in 4 ways, for example, as 187744804 + 5632652601 = 13702^2 + 75051^2 .

It is not a de Polignac number, because 5820397405 - 2¹ = 5820397403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5820397403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1328799 + ... + 1333171.

It is an arithmetic number, because the mean of its divisors is an integer number (301865049).

Almost surely, 2^5820397405 is an apocalyptic number.

It is an amenable number.

5820397405 is a deficient number, since it is larger than the sum of its proper divisors (1424363771).

5820397405 is a wasteful number, since it uses less digits than its factorization.

5820397405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4717 (or 4686 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 5820397405 is about 76291.5290513960. The cubic root of 5820397405 is about 1798.8055249118.

It can be divided in two parts, 5820 and 397405, that added together give a square (403225 = 635²).

The spelling of 5820397405 in words is "five billion, eight hundred twenty million, three hundred ninety-seven thousand, four hundred five".