11411971 has 4 divisors (see below), whose sum is σ = 11462472. Its totient is φ = 11361472.

The previous prime is 11411969. The next prime is 11411987. The reversal of 11411971 is 17911411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11411971 - 2¹ = 11411969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11411921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24910 + ... + 25363.

It is an arithmetic number, because the mean of its divisors is an integer number (2865618).

Almost surely, 2^11411971 is an apocalyptic number.

11411971 is a deficient number, since it is larger than the sum of its proper divisors (50501).

11411971 is an equidigital number, since it uses as much as digits as its factorization.

11411971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50500.

The product of its digits is 252, while the sum is 25.

The square root of 11411971 is about 3378.1608901886. The cubic root of 11411971 is about 225.1404620889.

The spelling of 11411971 in words is "eleven million, four hundred eleven thousand, nine hundred seventy-one".