9890872 has 16 divisors (see below), whose sum is σ = 19636560. Its totient is φ = 4654464.

The previous prime is 9890869. The next prime is 9890873. The reversal of 9890872 is 2780989.

9890872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9890873) 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, 36228 + ... + 36499.

It is an arithmetic number, because the mean of its divisors is an integer number (1227285).

Almost surely, 2^9890872 is an apocalyptic number.

It is an amenable number.

9890872 is a deficient number, since it is larger than the sum of its proper divisors (9745688).

9890872 is a wasteful number, since it uses less digits than its factorization.

9890872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72750 (or 72746 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 9890872 is about 3144.9756755816. The cubic root of 9890872 is about 214.6569036535.

The spelling of 9890872 in words is "nine million, eight hundred ninety thousand, eight hundred seventy-two".