3849097221 has 6 divisors (see below), whose sum is σ = 5559807110. Its totient is φ = 2566064808.

The previous prime is 3849097199. The next prime is 3849097243. The reversal of 3849097221 is 1227909483.

It is an interprime number because it is at equal distance from previous prime (3849097199) and next prime (3849097243).

It can be written as a sum of positive squares in only one way, i.e., 2431574721 + 1417522500 = 49311^2 + 37650^2 .

It is not a de Polignac number, because 3849097221 - 2⁶ = 3849097157 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 (3849097321) 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 5 ways as a sum of consecutive naturals, for example, 213838726 + ... + 213838743.

Almost surely, 2^3849097221 is an apocalyptic number.

It is an amenable number.

3849097221 is a deficient number, since it is larger than the sum of its proper divisors (1710709889).

3849097221 is a wasteful number, since it uses less digits than its factorization.

3849097221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427677475 (or 427677472 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 3849097221 is about 62041.0930029444. The cubic root of 3849097221 is about 1567.1826928825.

The spelling of 3849097221 in words is "three billion, eight hundred forty-nine million, ninety-seven thousand, two hundred twenty-one".