11273899 has 16 divisors (see below), whose sum is σ = 13961920. Its totient is φ = 8864640.

The previous prime is 11273879. The next prime is 11273903. The reversal of 11273899 is 99837211.

It is a cyclic number.

It is not a de Polignac number, because 11273899 - 2⁹ = 11273387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11273849) by changing a digit.

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

It is an upside-down number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20569 + ... + 21109.

It is an arithmetic number, because the mean of its divisors is an integer number (872620).

Almost surely, 2^11273899 is an apocalyptic number.

11273899 is a deficient number, since it is larger than the sum of its proper divisors (2688021).

11273899 is a wasteful number, since it uses less digits than its factorization.

11273899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790.

The product of its digits is 27216, while the sum is 40.

The square root of 11273899 is about 3357.6627287445. The cubic root of 11273899 is about 224.2287933888.

The spelling of 11273899 in words is "eleven million, two hundred seventy-three thousand, eight hundred ninety-nine".