801649862 has 16 divisors (see below), whose sum is σ = 1363130160. Its totient is φ = 350518752.

The previous prime is 801649847. The next prime is 801649867. The reversal of 801649862 is 268946108.

It is a happy number.

801649862 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801649867) 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, 810893 + ... + 811880.

It is an arithmetic number, because the mean of its divisors is an integer number (85195635).

Almost surely, 2^801649862 is an apocalyptic number.

801649862 is a deficient number, since it is larger than the sum of its proper divisors (561480298).

801649862 is a wasteful number, since it uses less digits than its factorization.

801649862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1622807.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 801649862 is about 28313.4219408393. The cubic root of 801649862 is about 928.9554936091.

The spelling of 801649862 in words is "eight hundred one million, six hundred forty-nine thousand, eight hundred sixty-two".