10947990 has 32 divisors (see below), whose sum is σ = 27659520. Its totient is φ = 2765664.

The previous prime is 10947961. The next prime is 10947997. The reversal of 10947990 is 9974901.

10947990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10947997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9034 + ... + 10173.

It is an arithmetic number, because the mean of its divisors is an integer number (864360).

Almost surely, 2^10947990 is an apocalyptic number.

10947990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10947990 is an abundant number, since it is smaller than the sum of its proper divisors (16711530).

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

10947990 is a wasteful number, since it uses less digits than its factorization.

10947990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19236.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 10947990 is about 3308.7746976789. The cubic root of 10947990 is about 222.0469424310.

The spelling of 10947990 in words is "ten million, nine hundred forty-seven thousand, nine hundred ninety".