3679654644 has 36 divisors (see below), whose sum is σ = 9428771716. Its totient is φ = 1209748608.

The previous prime is 3679654639. The next prime is 3679654679. The reversal of 3679654644 is 4464569763.

It is a happy number.

3679654644 is a `hidden beast` number, since 3 + 6 + 7 + 96 + 546 + 4 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2080454544 + 1599200100 = 45612^2 + 39990^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×3679654644² = 27079716598221533472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 697459 + ... + 702714.

Almost surely, 2^3679654644 is an apocalyptic number.

It is an amenable number.

3679654644 is an abundant number, since it is smaller than the sum of its proper divisors (5749117072).

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

3679654644 is a wasteful number, since it uses less digits than its factorization.

3679654644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400256 (or 1400251 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 54.

The square root of 3679654644 is about 60660.1569730907. The cubic root of 3679654644 is about 1543.8402280602.

The spelling of 3679654644 in words is "three billion, six hundred seventy-nine million, six hundred fifty-four thousand, six hundred forty-four".