3287644047 has 12 divisors (see below), whose sum is σ = 4786213120. Its totient is φ = 2174503968.

The previous prime is 3287644039. The next prime is 3287644049. The reversal of 3287644047 is 7404467823.

It is not a de Polignac number, because 3287644047 - 2³ = 3287644039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3287643993 and 3287644011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3287644049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1437022 + ... + 1439307.

Almost surely, 2^3287644047 is an apocalyptic number.

3287644047 is a deficient number, since it is larger than the sum of its proper divisors (1498569073).

3287644047 is a wasteful number, since it uses less digits than its factorization.

3287644047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2876462 (or 2876459 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 45.

The square root of 3287644047 is about 57337.9808416725. The cubic root of 3287644047 is about 1486.9450864449.

The spelling of 3287644047 in words is "three billion, two hundred eighty-seven million, six hundred forty-four thousand, forty-seven".