11471961 has 16 divisors (see below), whose sum is σ = 15823808. Its totient is φ = 7387200.

The previous prime is 11471959. The next prime is 11471987. The reversal of 11471961 is 16917411.

11471961 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11471961 - 2¹ = 11471959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11471561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19806 + ... + 20376.

It is an arithmetic number, because the mean of its divisors is an integer number (988988).

Almost surely, 2^11471961 is an apocalyptic number.

It is an amenable number.

11471961 is a deficient number, since it is larger than the sum of its proper divisors (4351847).

11471961 is a wasteful number, since it uses less digits than its factorization.

11471961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792.

The product of its digits is 1512, while the sum is 30.

The square root of 11471961 is about 3387.0283435484. The cubic root of 11471961 is about 225.5342760044.

The spelling of 11471961 in words is "eleven million, four hundred seventy-one thousand, nine hundred sixty-one".