11421873 has 12 divisors (see below), whose sum is σ = 16527888. Its totient is φ = 7600920.

The previous prime is 11421859. The next prime is 11421877. The reversal of 11421873 is 37812411.

It is not a de Polignac number, because 11421873 - 2¹⁶ = 11356337 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11421877) 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 11 ways as a sum of consecutive naturals, for example, 8086 + ... + 9392.

It is an arithmetic number, because the mean of its divisors is an integer number (1377324).

Almost surely, 2^11421873 is an apocalyptic number.

It is an amenable number.

11421873 is a deficient number, since it is larger than the sum of its proper divisors (5106015).

11421873 is a wasteful number, since it uses less digits than its factorization.

11421873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2284 (or 2281 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 11421873 is about 3379.6261627582. The cubic root of 11421873 is about 225.2055602908.

The spelling of 11421873 in words is "eleven million, four hundred twenty-one thousand, eight hundred seventy-three".