8820245 has 32 divisors (see below), whose sum is σ = 12768000. Its totient is φ = 5842368.

The previous prime is 8820223. The next prime is 8820257. The reversal of 8820245 is 5420288.

8820245 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8820245 - 2⁶ = 8820181 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63386 + ... + 63524.

It is an arithmetic number, because the mean of its divisors is an integer number (399000).

Almost surely, 2^8820245 is an apocalyptic number.

8820245 is the 1715-th octagonal number.

It is an amenable number.

8820245 is a deficient number, since it is larger than the sum of its proper divisors (3947755).

8820245 is a wasteful number, since it uses less digits than its factorization.

8820245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 8820245 is about 2969.8897285926. The cubic root of 8820245 is about 206.6142238885.

It can be divided in two parts, 8820 and 245, that multiplied together give a square (2160900 = 1470²).

The spelling of 8820245 in words is "eight million, eight hundred twenty thousand, two hundred forty-five".