853933247 has 4 divisors (see below), whose sum is σ = 857980536. Its totient is φ = 849885960.

The previous prime is 853933243. The next prime is 853933253. The reversal of 853933247 is 742339358.

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 853933247 - 2² = 853933243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 853933198 and 853933207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853933243) 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, 2023328 + ... + 2023749.

It is an arithmetic number, because the mean of its divisors is an integer number (214495134).

Almost surely, 2^853933247 is an apocalyptic number.

853933247 is a deficient number, since it is larger than the sum of its proper divisors (4047289).

853933247 is a wasteful number, since it uses less digits than its factorization.

853933247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4047288.

The product of its digits is 544320, while the sum is 44.

The square root of 853933247 is about 29222.1362497679. The cubic root of 853933247 is about 948.7271029739.

The spelling of 853933247 in words is "eight hundred fifty-three million, nine hundred thirty-three thousand, two hundred forty-seven".