3447986881 has 32 divisors (see below), whose sum is σ = 3704537088. Its totient is φ = 3204956160.

The previous prime is 3447986809. The next prime is 3447986887. The reversal of 3447986881 is 1886897443.

It is a cyclic number.

It is not a de Polignac number, because 3447986881 - 2²¹ = 3445889729 is a prime.

It is a super-2 number, since 2×3447986881² = 23777227063096216322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3447986887) 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 31 ways as a sum of consecutive naturals, for example, 17865121 + ... + 17865313.

It is an arithmetic number, because the mean of its divisors is an integer number (115766784).

Almost surely, 2^3447986881 is an apocalyptic number.

It is an amenable number.

3447986881 is a deficient number, since it is larger than the sum of its proper divisors (256550207).

3447986881 is a wasteful number, since it uses less digits than its factorization.

3447986881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481.

The product of its digits is 9289728, while the sum is 58.

The square root of 3447986881 is about 58719.5613147782. The cubic root of 3447986881 is about 1510.7358489724.

The spelling of 3447986881 in words is "three billion, four hundred forty-seven million, nine hundred eighty-six thousand, eight hundred eighty-one".