8620920 has 192 divisors, whose sum is σ = 35043840. Its totient is φ = 1785600.

The previous prime is 8620897. The next prime is 8620943. The reversal of 8620920 is 290268.

8620920 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (8620897) and next prime (8620943).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27565 + ... + 27875.

It is an arithmetic number, because the mean of its divisors is an integer number (182520).

Almost surely, 2^8620920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8620920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17521920).

8620920 is an abundant number, since it is smaller than the sum of its proper divisors (26422920).

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

8620920 is a wasteful number, since it uses less digits than its factorization.

8620920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 8620920 is about 2936.1403236222. The cubic root of 8620920 is about 205.0459544013.

The spelling of 8620920 in words is "eight million, six hundred twenty thousand, nine hundred twenty".