8904493 has 4 divisors (see below), whose sum is σ = 9589468. Its totient is φ = 8219520.

The previous prime is 8904491. The next prime is 8904499. The reversal of 8904493 is 3944098.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3944098 = 2 ⋅1972049.

It can be written as a sum of positive squares in 2 ways, for example, as 4652649 + 4251844 = 2157^2 + 2062^2 .

It is a cyclic number.

It is not a de Polignac number, because 8904493 - 2¹ = 8904491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8904491) 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, 342468 + ... + 342493.

It is an arithmetic number, because the mean of its divisors is an integer number (2397367).

Almost surely, 2^8904493 is an apocalyptic number.

It is an amenable number.

8904493 is a deficient number, since it is larger than the sum of its proper divisors (684975).

8904493 is a wasteful number, since it uses less digits than its factorization.

8904493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684974.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 8904493 is about 2984.0397115320. The cubic root of 8904493 is about 207.2699768736.

The spelling of 8904493 in words is "eight million, nine hundred four thousand, four hundred ninety-three".