4987656 has 80 divisors (see below), whose sum is σ = 14374800. Its totient is φ = 1614816.

The previous prime is 4987639. The next prime is 4987657. The reversal of 4987656 is 6567894.

It is an alternating number because its digits alternate between even and odd.

Its product of digits (362880) is a multiple of the sum of its prime factors (240).

It is not an unprimeable number, because it can be changed into a prime (4987657) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 27775 + ... + 27953.

It is an arithmetic number, because the mean of its divisors is an integer number (179685).

Almost surely, 2^4987656 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 4987656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7187400).

4987656 is an abundant number, since it is smaller than the sum of its proper divisors (9387144).

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

4987656 is a wasteful number, since it uses less digits than its factorization.

4987656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 227 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 4987656 is about 2233.3060694853. The cubic root of 4987656 is about 170.8567590851.

The spelling of 4987656 in words is "four million, nine hundred eighty-seven thousand, six hundred fifty-six".