3447345881 has 8 divisors (see below), whose sum is σ = 3951517440. Its totient is φ = 2946097728.

The previous prime is 3447345859. The next prime is 3447345929. The reversal of 3447345881 is 1885437443.

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

It is not a de Polignac number, because 3447345881 - 2¹⁴ = 3447329497 is a prime.

It is a super-2 number, since 2×3447345881² = 23768387246495332322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3447345481) 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, 728321 + ... + 733038.

It is an arithmetic number, because the mean of its divisors is an integer number (493939680).

Almost surely, 2^3447345881 is an apocalyptic number.

It is an amenable number.

3447345881 is a deficient number, since it is larger than the sum of its proper divisors (504171559).

3447345881 is a wasteful number, since it uses less digits than its factorization.

3447345881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461703.

The product of its digits is 1290240, while the sum is 47.

The square root of 3447345881 is about 58714.1029140359. The cubic root of 3447345881 is about 1510.6422250958.

The spelling of 3447345881 in words is "three billion, four hundred forty-seven million, three hundred forty-five thousand, eight hundred eighty-one".