6853730386 has 4 divisors (see below), whose sum is σ = 10280595582. Its totient is φ = 3426865192.

The previous prime is 6853730347. The next prime is 6853730413. The reversal of 6853730386 is 6830373586.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 5530153225 + 1323577161 = 74365^2 + 36381^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1713432595 + ... + 1713432598.

Almost surely, 2^6853730386 is an apocalyptic number.

6853730386 is a deficient number, since it is larger than the sum of its proper divisors (3426865196).

6853730386 is a wasteful number, since it uses less digits than its factorization.

6853730386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3426865195.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The square root of 6853730386 is about 82787.2598048758. The cubic root of 6853730386 is about 1899.5132997152.

The spelling of 6853730386 in words is "six billion, eight hundred fifty-three million, seven hundred thirty thousand, three hundred eighty-six".