9028780 has 12 divisors (see below), whose sum is σ = 18960480. Its totient is φ = 3611504.

The previous prime is 9028763. The next prime is 9028787. The reversal of 9028780 is 878209.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (9028787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225700 + ... + 225739.

It is an arithmetic number, because the mean of its divisors is an integer number (1580040).

Almost surely, 2^9028780 is an apocalyptic number.

It is an amenable number.

9028780 is an abundant number, since it is smaller than the sum of its proper divisors (9931700).

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

9028780 is a wasteful number, since it uses less digits than its factorization.

9028780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451448 (or 451446 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 9028780 is about 3004.7928381171. The cubic root of 9028780 is about 208.2298679129.

The spelling of 9028780 in words is "nine million, twenty-eight thousand, seven hundred eighty".