10993890 has 16 divisors (see below), whose sum is σ = 26385408. Its totient is φ = 2931696.

The previous prime is 10993867. The next prime is 10993897. The reversal of 10993890 is 9839901.

It is not an unprimeable number, because it can be changed into a prime (10993897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183202 + ... + 183261.

It is an arithmetic number, because the mean of its divisors is an integer number (1649088).

Almost surely, 2^10993890 is an apocalyptic number.

10993890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10993890 is an abundant number, since it is smaller than the sum of its proper divisors (15391518).

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

10993890 is a wasteful number, since it uses less digits than its factorization.

10993890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366473.

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 10993890 is about 3315.7035452525. The cubic root of 10993890 is about 222.3568241022.

The spelling of 10993890 in words is "ten million, nine hundred ninety-three thousand, eight hundred ninety".