9164427 has 4 divisors (see below), whose sum is σ = 12219240. Its totient is φ = 6109616.

The previous prime is 9164423. The next prime is 9164429. The reversal of 9164427 is 7244619.

It is a happy number.

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 9164427 - 2² = 9164423 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (9164423) 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 3 ways as a sum of consecutive naturals, for example, 1527402 + ... + 1527407.

It is an arithmetic number, because the mean of its divisors is an integer number (3054810).

Almost surely, 2^9164427 is an apocalyptic number.

9164427 is a deficient number, since it is larger than the sum of its proper divisors (3054813).

9164427 is a wasteful number, since it uses less digits than its factorization.

9164427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3054812.

The product of its digits is 12096, while the sum is 33.

The square root of 9164427 is about 3027.2804627256. The cubic root of 9164427 is about 209.2674932454.

It can be divided in two parts, 9164 and 427, that added together give a triangular number (9591 = T₁₃₈).

The spelling of 9164427 in words is "nine million, one hundred sixty-four thousand, four hundred twenty-seven".