11945427 has 12 divisors (see below), whose sum is σ = 17247384. Its totient is φ = 7350720.

The previous prime is 11945411. The next prime is 11945429. The reversal of 11945427 is 72454911.

It is a happy number.

It is not a de Polignac number, because 11945427 - 2⁴ = 11945411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11945429) 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 11 ways as a sum of consecutive naturals, for example, 11274 + ... + 12287.

It is an arithmetic number, because the mean of its divisors is an integer number (1437282).

Almost surely, 2^11945427 is an apocalyptic number.

11945427 is a deficient number, since it is larger than the sum of its proper divisors (5301957).

11945427 is a wasteful number, since it uses less digits than its factorization.

11945427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23590 (or 23577 counting only the distinct ones).

The product of its digits is 10080, while the sum is 33.

The square root of 11945427 is about 3456.2157050740. The cubic root of 11945427 is about 228.5952627862.

The spelling of 11945427 in words is "eleven million, nine hundred forty-five thousand, four hundred twenty-seven".