9880664 has 8 divisors (see below), whose sum is σ = 18526260. Its totient is φ = 4940328.

The previous prime is 9880643. The next prime is 9880667. The reversal of 9880664 is 4660889.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9880667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617534 + ... + 617549.

Almost surely, 2^9880664 is an apocalyptic number.

It is an amenable number.

9880664 is a deficient number, since it is larger than the sum of its proper divisors (8645596).

9880664 is a wasteful number, since it uses less digits than its factorization.

9880664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235089 (or 1235085 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 9880664 is about 3143.3523505964. The cubic root of 9880664 is about 214.5830317734.

The spelling of 9880664 in words is "nine million, eight hundred eighty thousand, six hundred sixty-four".