8380813 has 12 divisors (see below), whose sum is σ = 10323612. Its totient is φ = 6760320.

The previous prime is 8380811. The next prime is 8380831. The reversal of 8380813 is 3180838.

It can be written as a sum of positive squares in 2 ways, for example, as 5697769 + 2683044 = 2387^2 + 1638^2 .

It is not a de Polignac number, because 8380813 - 2¹ = 8380811 is a prime.

It is a Duffinian number.

8380813 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8380811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4198 + ... + 5863.

It is an arithmetic number, because the mean of its divisors is an integer number (860301).

Almost surely, 2^8380813 is an apocalyptic number.

It is an amenable number.

8380813 is a deficient number, since it is larger than the sum of its proper divisors (1942799).

8380813 is a wasteful number, since it uses less digits than its factorization.

8380813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10092 (or 10085 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 8380813 is about 2894.9633849153. The cubic root of 8380813 is about 203.1243787910.

The spelling of 8380813 in words is "eight million, three hundred eighty thousand, eight hundred thirteen".