11947441 has 16 divisors (see below), whose sum is σ = 13608000. Its totient is φ = 10393600.

The previous prime is 11947433. The next prime is 11947471. The reversal of 11947441 is 14474911.

It is a cyclic number.

It is not a de Polignac number, because 11947441 - 2³ = 11947433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11947471) by changing a digit.

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, 26385 + ... + 26833.

It is an arithmetic number, because the mean of its divisors is an integer number (850500).

Almost surely, 2^11947441 is an apocalyptic number.

11947441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11947441 is a deficient number, since it is larger than the sum of its proper divisors (1660559).

11947441 is a wasteful number, since it uses less digits than its factorization.

11947441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560.

The product of its digits is 4032, while the sum is 31.

The square root of 11947441 is about 3456.5070519240. The cubic root of 11947441 is about 228.6081091244.

The spelling of 11947441 in words is "eleven million, nine hundred forty-seven thousand, four hundred forty-one".