809648112 has 80 divisors (see below), whose sum is σ = 2574279680. Its totient is φ = 213532416.

The previous prime is 809648101. The next prime is 809648113. The reversal of 809648112 is 211846908.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (809648113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88312 + ... + 97047.

It is an arithmetic number, because the mean of its divisors is an integer number (32178496).

Almost surely, 2^809648112 is an apocalyptic number.

It is an amenable number.

809648112 is an abundant number, since it is smaller than the sum of its proper divisors (1764631568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

809648112 is a wasteful number, since it uses less digits than its factorization.

809648112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185390 (or 185384 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 809648112 is about 28454.3162279469. The cubic root of 809648112 is about 932.0347448473.

The spelling of 809648112 in words is "eight hundred nine million, six hundred forty-eight thousand, one hundred twelve".