801216 has 84 divisors (see below), whose sum is σ = 2496312. Its totient is φ = 244224.

The previous prime is 801197. The next prime is 801217. The reversal of 801216 is 612108.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801217) by changing a digit.

801216 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 11 ways as a sum of consecutive naturals, for example, 7435 + ... + 7541.

It is an arithmetic number, because the mean of its divisors is an integer number (29718).

2⁸⁰¹²¹⁶ 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 801216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1248156).

801216 is an abundant number, since it is smaller than the sum of its proper divisors (1695096).

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

801216 is a wasteful number, since it uses less digits than its factorization.

801216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 801216 is about 895.1066975506. The cubic root of 801216 is about 92.8787876283.

It can be divided in two parts, 80 and 1216, that added together give a 4-th power (1296 = 6⁴).

The spelling of 801216 in words is "eight hundred one thousand, two hundred sixteen".