16916427 has 12 divisors (see below), whose sum is σ = 26656344. Its totient is φ = 10252320.

The previous prime is 16916413. The next prime is 16916429. The reversal of 16916427 is 72461961.

16916427 is a `hidden beast` number, since 1 + 6 + 9 + 1 + 642 + 7 = 666.

It is not a de Polignac number, because 16916427 - 2⁷ = 16916299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16916391 and 16916400.

It is not an unprimeable number, because it can be changed into a prime (16916429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85338 + ... + 85535.

It is an arithmetic number, because the mean of its divisors is an integer number (2221362).

Almost surely, 2^16916427 is an apocalyptic number.

16916427 is a deficient number, since it is larger than the sum of its proper divisors (9739917).

16916427 is a wasteful number, since it uses less digits than its factorization.

16916427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170890 (or 170887 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 16916427 is about 4112.9584242975. The cubic root of 16916427 is about 256.7061143244.

It can be divided in two parts, 1691 and 6427, that added together give a palindrome (8118).

The spelling of 16916427 in words is "sixteen million, nine hundred sixteen thousand, four hundred twenty-seven".