804990653 has 8 divisors (see below), whose sum is σ = 811548672. Its totient is φ = 798451056.

The previous prime is 804990649. The next prime is 804990673. The reversal of 804990653 is 356099408.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 804990653 - 2² = 804990649 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 (804990673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91076 + ... + 99522.

It is an arithmetic number, because the mean of its divisors is an integer number (101443584).

Almost surely, 2^804990653 is an apocalyptic number.

It is an amenable number.

804990653 is a deficient number, since it is larger than the sum of its proper divisors (6558019).

804990653 is a wasteful number, since it uses less digits than its factorization.

804990653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9211.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 804990653 is about 28372.3571985128. The cubic root of 804990653 is about 930.2441464064.

The spelling of 804990653 in words is "eight hundred four million, nine hundred ninety thousand, six hundred fifty-three".