16911427 has 8 divisors (see below), whose sum is σ = 18636464. Its totient is φ = 15247008.

The previous prime is 16911409. The next prime is 16911443. The reversal of 16911427 is 72411961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16911427 - 2⁷ = 16911299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16911407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14568 + ... + 15685.

It is an arithmetic number, because the mean of its divisors is an integer number (2329558).

Almost surely, 2^16911427 is an apocalyptic number.

16911427 is a deficient number, since it is larger than the sum of its proper divisors (1725037).

16911427 is a wasteful number, since it uses less digits than its factorization.

16911427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30309.

The product of its digits is 3024, while the sum is 31.

The square root of 16911427 is about 4112.3505443967. The cubic root of 16911427 is about 256.6808202311.

The spelling of 16911427 in words is "sixteen million, nine hundred eleven thousand, four hundred twenty-seven".