801536 has 36 divisors (see below), whose sum is σ = 1667904. Its totient is φ = 384000.

The previous prime is 801517. The next prime is 801539. The reversal of 801536 is 635108.

It is not an unprimeable number, because it can be changed into a prime (801539) by changing a digit.

801536 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7886 + ... + 7986.

2⁸⁰¹⁵³⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 801536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (833952).

801536 is an abundant number, since it is smaller than the sum of its proper divisors (866368).

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

801536 is a wasteful number, since it uses less digits than its factorization.

801536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 801536 is about 895.2854293464. The cubic root of 801536 is about 92.8911510259.

The spelling of 801536 in words is "eight hundred one thousand, five hundred thirty-six".