8491025 has 12 divisors (see below), whose sum is σ = 10987392. Its totient is φ = 6497040.

The previous prime is 8491001. The next prime is 8491033. The reversal of 8491025 is 5201948.

It is a de Polignac number, because none of the positive numbers 2^k-8491025 is a prime.

It is a Duffinian 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, 6809 + ... + 7958.

It is an arithmetic number, because the mean of its divisors is an integer number (915616).

Almost surely, 2^8491025 is an apocalyptic number.

It is an amenable number.

8491025 is a deficient number, since it is larger than the sum of its proper divisors (2496367).

8491025 is a wasteful number, since it uses less digits than its factorization.

8491025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14800 (or 14795 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 8491025 is about 2913.9363411029. The cubic root of 8491025 is about 204.0109006734.

The spelling of 8491025 in words is "eight million, four hundred ninety-one thousand, twenty-five".