853217206 has 4 divisors (see below), whose sum is σ = 1279825812. Its totient is φ = 426608602.

The previous prime is 853217201. The next prime is 853217227. The reversal of 853217206 is 602712358.

It is a happy number.

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

It is a super-2 number, since 2×853217206² = 1455959201228892872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853217201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213304300 + ... + 213304303.

It is an arithmetic number, because the mean of its divisors is an integer number (319956453).

Almost surely, 2^853217206 is an apocalyptic number.

853217206 is a deficient number, since it is larger than the sum of its proper divisors (426608606).

853217206 is a wasteful number, since it uses less digits than its factorization.

853217206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426608605.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 853217206 is about 29209.8819922300. The cubic root of 853217206 is about 948.4618529398.

The spelling of 853217206 in words is "eight hundred fifty-three million, two hundred seventeen thousand, two hundred six".