3885220391 has 4 divisors (see below), whose sum is σ = 4184083512. Its totient is φ = 3586357272.

The previous prime is 3885220379. The next prime is 3885220403. The reversal of 3885220391 is 1930225883.

3885220391 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (3885220379) and next prime (3885220403).

It is a cyclic number.

It is not a de Polignac number, because 3885220391 - 2⁶ = 3885220327 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 (3885220331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149431541 + ... + 149431566.

It is an arithmetic number, because the mean of its divisors is an integer number (1046020878).

Almost surely, 2^3885220391 is an apocalyptic number.

3885220391 is a deficient number, since it is larger than the sum of its proper divisors (298863121).

3885220391 is a wasteful number, since it uses less digits than its factorization.

3885220391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298863120.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 3885220391 is about 62331.5360872809. The cubic root of 3885220391 is about 1572.0700230977.

The spelling of 3885220391 in words is "three billion, eight hundred eighty-five million, two hundred twenty thousand, three hundred ninety-one".