8987646 has 16 divisors (see below), whose sum is σ = 18921600. Its totient is φ = 2838168.

The previous prime is 8987639. The next prime is 8987653. The reversal of 8987646 is 6467898.

It is an interprime number because it is at equal distance from previous prime (8987639) and next prime (8987653).

It is a junction number, because it is equal to n+sod(n) for n = 8987595 and 8987604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39306 + ... + 39533.

It is an arithmetic number, because the mean of its divisors is an integer number (1182600).

Almost surely, 2^8987646 is an apocalyptic number.

8987646 is an abundant number, since it is smaller than the sum of its proper divisors (9933954).

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

8987646 is a wasteful number, since it uses less digits than its factorization.

8987646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78863.

The product of its digits is 580608, while the sum is 48.

The square root of 8987646 is about 2997.9402929345. The cubic root of 8987646 is about 207.9131633330.

The spelling of 8987646 in words is "eight million, nine hundred eighty-seven thousand, six hundred forty-six".