11447890 has 32 divisors (see below), whose sum is σ = 21415680. Its totient is φ = 4402944.

The previous prime is 11447879. The next prime is 11447923. The reversal of 11447890 is 9874411.

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 15 ways as a sum of consecutive naturals, for example, 33802 + ... + 34138.

It is an arithmetic number, because the mean of its divisors is an integer number (669240).

Almost surely, 2^11447890 is an apocalyptic number.

11447890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11447890 is a deficient number, since it is larger than the sum of its proper divisors (9967790).

11447890 is a wasteful number, since it uses less digits than its factorization.

11447890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 11447890 is about 3383.4730677220. The cubic root of 11447890 is about 225.3764233931.

The spelling of 11447890 in words is "eleven million, four hundred forty-seven thousand, eight hundred ninety".