8904891 has 16 divisors (see below), whose sum is σ = 12192768. Its totient is φ = 5779200.

The previous prime is 8904871. The next prime is 8904899. The reversal of 8904891 is 1984098.

It is not a de Polignac number, because 8904891 - 2¹⁴ = 8888507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8904899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20446 + ... + 20876.

It is an arithmetic number, because the mean of its divisors is an integer number (762048).

Almost surely, 2^8904891 is an apocalyptic number.

8904891 is a deficient number, since it is larger than the sum of its proper divisors (3287877).

8904891 is a wasteful number, since it uses less digits than its factorization.

8904891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 8904891 is about 2984.1063989074. The cubic root of 8904891 is about 207.2730649110.

The spelling of 8904891 in words is "eight million, nine hundred four thousand, eight hundred ninety-one".