851373343 has 4 divisors (see below), whose sum is σ = 854610768. Its totient is φ = 848135920.

The previous prime is 851373331. The next prime is 851373353. The reversal of 851373343 is 343373158.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-851373343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851373353) 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, 1618318 + ... + 1618843.

It is an arithmetic number, because the mean of its divisors is an integer number (213652692).

Almost surely, 2^851373343 is an apocalyptic number.

851373343 is a deficient number, since it is larger than the sum of its proper divisors (3237425).

851373343 is a wasteful number, since it uses less digits than its factorization.

851373343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3237424.

The product of its digits is 90720, while the sum is 37.

The square root of 851373343 is about 29178.3026065602. The cubic root of 851373343 is about 947.7781290281.

The spelling of 851373343 in words is "eight hundred fifty-one million, three hundred seventy-three thousand, three hundred forty-three".