3447740864 has 56 divisors (see below), whose sum is σ = 7091324400. Its totient is φ = 1661184000.

The previous prime is 3447740837. The next prime is 3447740867. The reversal of 3447740864 is 4680477443.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3447740867) 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, 1147364 + ... + 1150364.

Almost surely, 2^3447740864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3447740864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3545662200).

3447740864 is an abundant number, since it is smaller than the sum of its proper divisors (3643583536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3447740864 is a wasteful number, since it uses less digits than its factorization.

3447740864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3661 (or 3651 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 47.

The square root of 3447740864 is about 58717.4664303561. The cubic root of 3447740864 is about 1510.6999173255.

The spelling of 3447740864 in words is "three billion, four hundred forty-seven million, seven hundred forty thousand, eight hundred sixty-four".