9887764 has 12 divisors (see below), whose sum is σ = 17706304. Its totient is φ = 4828824.

The previous prime is 9887747. The next prime is 9887767. The reversal of 9887764 is 4677889.

It is a plaindrome in base 14.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9887767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28572 + ... + 28915.

Almost surely, 2^9887764 is an apocalyptic number.

It is an amenable number.

9887764 is a deficient number, since it is larger than the sum of its proper divisors (7818540).

9887764 is a wasteful number, since it uses less digits than its factorization.

9887764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57534 (or 57532 counting only the distinct ones).

The product of its digits is 677376, while the sum is 49.

The square root of 9887764 is about 3144.4815152899. The cubic root of 9887764 is about 214.6344174814.

The spelling of 9887764 in words is "nine million, eight hundred eighty-seven thousand, seven hundred sixty-four".