11473891 has 32 divisors (see below), whose sum is σ = 14676480. Its totient is φ = 8812800.

The previous prime is 11473883. The next prime is 11473919. The reversal of 11473891 is 19837411.

It is a cyclic number.

It is not a de Polignac number, because 11473891 - 2³ = 11473883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11473841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111346 + ... + 111448.

It is an arithmetic number, because the mean of its divisors is an integer number (458640).

Almost surely, 2^11473891 is an apocalyptic number.

11473891 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11473891 is a deficient number, since it is larger than the sum of its proper divisors (3202589).

11473891 is a wasteful number, since it uses less digits than its factorization.

11473891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187.

The product of its digits is 6048, while the sum is 34.

The square root of 11473891 is about 3387.3132420844. The cubic root of 11473891 is about 225.5469229774.

The spelling of 11473891 in words is "eleven million, four hundred seventy-three thousand, eight hundred ninety-one".