8761280 has 112 divisors (see below), whose sum is σ = 24140160. Its totient is φ = 2995200.

The previous prime is 8761279. The next prime is 8761289. The reversal of 8761280 is 821678.

8761280 = T₅₅ + T₅₆ + ... + T₃₇₄.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8761289) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 66815 + ... + 66945.

Almost surely, 2^8761280 is an apocalyptic number.

8761280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8761280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12070080).

8761280 is an abundant number, since it is smaller than the sum of its proper divisors (15378880).

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

8761280 is a wasteful number, since it uses less digits than its factorization.

8761280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 8761280 is about 2959.9459454524. The cubic root of 8761280 is about 206.1527757254.

The spelling of 8761280 in words is "eight million, seven hundred sixty-one thousand, two hundred eighty".