3933211381 has 8 divisors (see below), whose sum is σ = 4292181504. Its totient is φ = 3574475520.

The previous prime is 3933211379. The next prime is 3933211411. The reversal of 3933211381 is 1831123393.

It is a happy number.

3933211381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3933211381 - 2¹ = 3933211379 is a prime.

It is a super-2 number, since 2×3933211381² = 30940303535255854322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3933211361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22485 + ... + 91498.

It is an arithmetic number, because the mean of its divisors is an integer number (536522688).

Almost surely, 2^3933211381 is an apocalyptic number.

It is an amenable number.

3933211381 is a deficient number, since it is larger than the sum of its proper divisors (358970123).

3933211381 is a wasteful number, since it uses less digits than its factorization.

3933211381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117131.

The product of its digits is 11664, while the sum is 34.

The square root of 3933211381 is about 62715.3201458782. The cubic root of 3933211381 is about 1578.5163904107.

The spelling of 3933211381 in words is "three billion, nine hundred thirty-three million, two hundred eleven thousand, three hundred eighty-one".