803020217 has 4 divisors (see below), whose sum is σ = 803546256. Its totient is φ = 802494180.

The previous prime is 803020193. The next prime is 803020243. The reversal of 803020217 is 712020308.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 803020217 - 2⁸ = 803019961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 803020192 and 803020201.

It is not an unprimeable number, because it can be changed into a prime (803020297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260723 + ... + 263784.

It is an arithmetic number, because the mean of its divisors is an integer number (200886564).

Almost surely, 2^803020217 is an apocalyptic number.

It is an amenable number.

803020217 is a deficient number, since it is larger than the sum of its proper divisors (526039).

803020217 is a wasteful number, since it uses less digits than its factorization.

803020217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526038.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 803020217 is about 28337.6113495827. The cubic root of 803020217 is about 929.4845168112.

Subtracting from 803020217 its reverse (712020308), we obtain a palindrome (90999909).

The spelling of 803020217 in words is "eight hundred three million, twenty thousand, two hundred seventeen".