809948 has 24 divisors (see below), whose sum is σ = 1541232. Its totient is φ = 370944.

The previous prime is 809929. The next prime is 809981. The reversal of 809948 is 849908.

It is a congruent number.

It is an unprimeable number.

809948 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2786 + ... + 3062.

It is an arithmetic number, because the mean of its divisors is an integer number (64218).

2⁸⁰⁹⁹⁴⁸ is an apocalyptic number.

It is an amenable number.

809948 is a deficient number, since it is larger than the sum of its proper divisors (731284).

809948 is a wasteful number, since it uses less digits than its factorization.

809948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 809948 is about 899.9711106474. The cubic root of 809948 is about 93.2149803694.

The spelling of 809948 in words is "eight hundred nine thousand, nine hundred forty-eight".