801728622 has 24 divisors (see below), whose sum is σ = 1739648664. Its totient is φ = 266847504.

The previous prime is 801728569. The next prime is 801728651. The reversal of 801728622 is 226827108.

It is a happy number.

801728622 is a `hidden beast` number, since 8 + 0 + 1 + 7 + 28 + 622 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20313 + ... + 44900.

It is an arithmetic number, because the mean of its divisors is an integer number (72485361).

Almost surely, 2^801728622 is an apocalyptic number.

801728622 is an abundant number, since it is smaller than the sum of its proper divisors (937920042).

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

801728622 is a wasteful number, since it uses less digits than its factorization.

801728622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65904 (or 65901 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 801728622 is about 28314.8127664655. The cubic root of 801728622 is about 928.9859150945.

The spelling of 801728622 in words is "eight hundred one million, seven hundred twenty-eight thousand, six hundred twenty-two".