3381971787 has 24 divisors (see below), whose sum is σ = 4967464320. Its totient is φ = 2216903040.

The previous prime is 3381971771. The next prime is 3381971837. The reversal of 3381971787 is 7871791833.

It is a happy number.

3381971787 is a `hidden beast` number, since 3 + 381 + 97 + 178 + 7 = 666.

3381971787 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3381971787 - 2⁴ = 3381971771 is a prime.

It is a super-2 number, since 2×3381971787² = 22875466336127946738, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3381921787) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133318 + ... + 156644.

It is an arithmetic number, because the mean of its divisors is an integer number (206977680).

Almost surely, 2^3381971787 is an apocalyptic number.

3381971787 is a deficient number, since it is larger than the sum of its proper divisors (1585492533).

3381971787 is a wasteful number, since it uses less digits than its factorization.

3381971787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23603 (or 23600 counting only the distinct ones).

The product of its digits is 1778112, while the sum is 54.

The square root of 3381971787 is about 58154.7228262675. The cubic root of 3381971787 is about 1501.0321469522.

The spelling of 3381971787 in words is "three billion, three hundred eighty-one million, nine hundred seventy-one thousand, seven hundred eighty-seven".