3887630656 has 56 divisors (see below), whose sum is σ = 9494804480. Its totient is φ = 1537961472.

The previous prime is 3887630647. The next prime is 3887630687. The reversal of 3887630656 is 6560367883.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×3887630656² = 30227344234941980672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327936 + ... + 339583.

It is an arithmetic number, because the mean of its divisors is an integer number (169550080).

Almost surely, 2^3887630656 is an apocalyptic number.

It is an amenable number.

3887630656 is an abundant number, since it is smaller than the sum of its proper divisors (5607173824).

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

3887630656 is a wasteful number, since it uses less digits than its factorization.

3887630656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667551 (or 667541 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 52.

The square root of 3887630656 is about 62350.8673235585. The cubic root of 3887630656 is about 1572.3950430191.

The spelling of 3887630656 in words is "three billion, eight hundred eighty-seven million, six hundred thirty thousand, six hundred fifty-six".