10921398 has 16 divisors (see below), whose sum is σ = 22351296. Its totient is φ = 3555720.

The previous prime is 10921373. The next prime is 10921403. The reversal of 10921398 is 89312901.

It is a Curzon number.

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, 20908 + ... + 21423.

It is an arithmetic number, because the mean of its divisors is an integer number (1396956).

Almost surely, 2^10921398 is an apocalyptic number.

10921398 is an abundant number, since it is smaller than the sum of its proper divisors (11429898).

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

10921398 is a wasteful number, since it uses less digits than its factorization.

10921398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42379.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 10921398 is about 3304.7538486247. The cubic root of 10921398 is about 221.8670171829.

The spelling of 10921398 in words is "ten million, nine hundred twenty-one thousand, three hundred ninety-eight".