280798925 has 12 divisors (see below), whose sum is σ = 379844736. Its totient is φ = 204217200.

The previous prime is 280798919. The next prime is 280798937. The reversal of 280798925 is 529897082.

It is not a de Polignac number, because 280798925 - 2⁸ = 280798669 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 11 ways as a sum of consecutive naturals, for example, 510269 + ... + 510818.

It is an arithmetic number, because the mean of its divisors is an integer number (31653728).

Almost surely, 2^280798925 is an apocalyptic number.

280798925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

280798925 is a deficient number, since it is larger than the sum of its proper divisors (99045811).

280798925 is a wasteful number, since it uses less digits than its factorization.

280798925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021108 (or 1021103 counting only the distinct ones).

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

The square root of 280798925 is about 16757.0559765133. The cubic root of 280798925 is about 654.8348941893.

The spelling of 280798925 in words is "two hundred eighty million, seven hundred ninety-eight thousand, nine hundred twenty-five".