3854634243 has 4 divisors (see below), whose sum is σ = 5139512328. Its totient is φ = 2569756160.

The previous prime is 3854634181. The next prime is 3854634263. The reversal of 3854634243 is 3424364583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3424364583 = 3 ⋅1141454861.

It is a cyclic number.

It is not a de Polignac number, because 3854634243 - 2¹² = 3854630147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3854634195 and 3854634204.

It is not an unprimeable number, because it can be changed into a prime (3854634263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642439038 + ... + 642439043.

It is an arithmetic number, because the mean of its divisors is an integer number (1284878082).

Almost surely, 2^3854634243 is an apocalyptic number.

3854634243 is a deficient number, since it is larger than the sum of its proper divisors (1284878085).

3854634243 is a wasteful number, since it uses less digits than its factorization.

3854634243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284878084.

The product of its digits is 829440, while the sum is 42.

The square root of 3854634243 is about 62085.7007933389. The cubic root of 3854634243 is about 1567.9338099131.

The spelling of 3854634243 in words is "three billion, eight hundred fifty-four million, six hundred thirty-four thousand, two hundred forty-three".