3647714644 has 18 divisors (see below), whose sum is σ = 7425705210. Its totient is φ = 1563306192.

The previous prime is 3647714641. The next prime is 3647714657. The reversal of 3647714644 is 4464177463.

It can be written as a sum of positive squares in only one way, i.e., 3526934544 + 120780100 = 59388^2 + 10990^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3647714594 and 3647714603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3647714641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9305199 + ... + 9305590.

Almost surely, 2^3647714644 is an apocalyptic number.

It is an amenable number.

3647714644 is an abundant number, since it is smaller than the sum of its proper divisors (3777990566).

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

3647714644 is a wasteful number, since it uses less digits than its factorization.

3647714644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18610807 (or 18610798 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 46.

The square root of 3647714644 is about 60396.3131656229. The cubic root of 3647714644 is about 1539.3603128351.

The spelling of 3647714644 in words is "three billion, six hundred forty-seven million, seven hundred fourteen thousand, six hundred forty-four".