8761920 has 56 divisors (see below), whose sum is σ = 27822144. Its totient is φ = 2336256.

The previous prime is 8761903. The next prime is 8761939. The reversal of 8761920 is 291678.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3604 + ... + 5523.

It is an arithmetic number, because the mean of its divisors is an integer number (496824).

Almost surely, 2^8761920 is an apocalyptic number.

8761920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8761920 is an abundant number, since it is smaller than the sum of its proper divisors (19060224).

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

8761920 is a wasteful number, since it uses less digits than its factorization.

8761920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9147 (or 9137 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 8761920 is about 2960.0540535605. The cubic root of 8761920 is about 206.1577953331.

The spelling of 8761920 in words is "eight million, seven hundred sixty-one thousand, nine hundred twenty".