8625780 has 72 divisors (see below), whose sum is σ = 26411112. Its totient is φ = 2278656.

The previous prime is 8625733. The next prime is 8625787. The reversal of 8625780 is 875268.

8625780 is a `hidden beast` number, since 86 + 2 + 578 + 0 = 666.

8625780 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1205604 + 7420176 = 1098^2 + 2724^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8625787) 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, 31002 + ... + 31278.

It is an arithmetic number, because the mean of its divisors is an integer number (366821).

Almost surely, 2^8625780 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 8625780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13205556).

8625780 is an abundant number, since it is smaller than the sum of its proper divisors (17785332).

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

8625780 is a wasteful number, since it uses less digits than its factorization.

8625780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465 (or 460 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 8625780 is about 2936.9678241343. The cubic root of 8625780 is about 205.0844783692.

The spelling of 8625780 in words is "eight million, six hundred twenty-five thousand, seven hundred eighty".