9772280 has 64 divisors (see below), whose sum is σ = 26619840. Its totient is φ = 3151872.

The previous prime is 9772277. The next prime is 9772303. The reversal of 9772280 is 822779.

9772280 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (35).

9772280 is strictly pandigital in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 9772280.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3734 + ... + 5786.

It is an arithmetic number, because the mean of its divisors is an integer number (415935).

Almost surely, 2^9772280 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 9772280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13309920).

9772280 is an abundant number, since it is smaller than the sum of its proper divisors (16847560).

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

9772280 is a wasteful number, since it uses less digits than its factorization.

9772280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2088 (or 2084 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 9772280 is about 3126.0646186539. The cubic root of 9772280 is about 213.7955365063.

The spelling of 9772280 in words is "nine million, seven hundred seventy-two thousand, two hundred eighty".