8260820 has 24 divisors (see below), whose sum is σ = 18261600. Its totient is φ = 3130272.

The previous prime is 8260807. The next prime is 8260823. The reversal of 8260820 is 280628.

8260820 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×8260820² = 136482294144800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8260820.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8260823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10490 + ... + 11249.

It is an arithmetic number, because the mean of its divisors is an integer number (760900).

Almost surely, 2^8260820 is an apocalyptic number.

It is an amenable number.

8260820 is an abundant number, since it is smaller than the sum of its proper divisors (10000780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8260820 is a wasteful number, since it uses less digits than its factorization.

8260820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21767 (or 21765 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 8260820 is about 2874.1642263448. The cubic root of 8260820 is about 202.1502982333.

It can be divided in two parts, 82608 and 20, that added together give a palindrome (82628).

The spelling of 8260820 in words is "eight million, two hundred sixty thousand, eight hundred twenty".