3894743853 has 48 divisors (see below), whose sum is σ = 7553460096. Its totient is φ = 1867605120.

The previous prime is 3894743803. The next prime is 3894743857. The reversal of 3894743853 is 3583474983.

It is not a de Polignac number, because 3894743853 - 2¹⁰ = 3894742829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3894743853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3894743857) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 207150 + ... + 225167.

It is an arithmetic number, because the mean of its divisors is an integer number (157363752).

Almost surely, 2^3894743853 is an apocalyptic number.

3894743853 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3894743853 is a deficient number, since it is larger than the sum of its proper divisors (3658716243).

3894743853 is a wasteful number, since it uses less digits than its factorization.

3894743853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432354 (or 432351 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The square root of 3894743853 is about 62407.8829395774. The cubic root of 3894743853 is about 1573.3534623440.

It can be divided in two parts, 3894 and 743853, that added together give a palindrome (747747).

The spelling of 3894743853 in words is "three billion, eight hundred ninety-four million, seven hundred forty-three thousand, eight hundred fifty-three".