801215 has 4 divisors (see below), whose sum is σ = 961464. Its totient is φ = 640968.

The previous prime is 801197. The next prime is 801217. The reversal of 801215 is 512108.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 801215 - 2⁸ = 800959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 801193 and 801202.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80117 + ... + 80126.

It is an arithmetic number, because the mean of its divisors is an integer number (240366).

2⁸⁰¹²¹⁵ is an apocalyptic number.

801215 is a deficient number, since it is larger than the sum of its proper divisors (160249).

801215 is a wasteful number, since it uses less digits than its factorization.

801215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160248.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 801215 is about 895.1061389578. The cubic root of 801215 is about 92.8787489875.

The spelling of 801215 in words is "eight hundred one thousand, two hundred fifteen".