9028780925 has 6 divisors (see below), whose sum is σ = 11195688378. Its totient is φ = 7223024720.

The previous prime is 9028780913. The next prime is 9028780951. The reversal of 9028780925 is 5290878209.

It can be written as a sum of positive squares in 3 ways, for example, as 1538051524 + 7490729401 = 39218^2 + 86549^2 .

It is not a de Polignac number, because 9028780925 - 2⁴ = 9028780909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 180575594 + ... + 180575643.

It is an arithmetic number, because the mean of its divisors is an integer number (1865948063).

Almost surely, 2^9028780925 is an apocalyptic number.

It is an amenable number.

9028780925 is a deficient number, since it is larger than the sum of its proper divisors (2166907453).

9028780925 is a wasteful number, since it uses less digits than its factorization.

9028780925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361151247 (or 361151242 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 50.

The square root of 9028780925 is about 95019.8975215191. The cubic root of 9028780925 is about 2082.2987502401.

The spelling of 9028780925 in words is "nine billion, twenty-eight million, seven hundred eighty thousand, nine hundred twenty-five".