9398890 has 16 divisors (see below), whose sum is σ = 17464320. Its totient is φ = 3638160.

The previous prime is 9398869. The next prime is 9398899. The reversal of 9398890 is 988939.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 9398890.

It is not an unprimeable number, because it can be changed into a prime (9398899) by changing a digit.

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, 14850 + ... + 15469.

It is an arithmetic number, because the mean of its divisors is an integer number (1091520).

Almost surely, 2^9398890 is an apocalyptic number.

9398890 is a deficient number, since it is larger than the sum of its proper divisors (8065430).

9398890 is a wasteful number, since it uses less digits than its factorization.

9398890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30357.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 9398890 is about 3065.7609169666. The cubic root of 9398890 is about 211.0371220147.

The spelling of 9398890 in words is "nine million, three hundred ninety-eight thousand, eight hundred ninety".