16934491 has 16 divisors (see below), whose sum is σ = 20527360. Its totient is φ = 13646880.

The previous prime is 16934483. The next prime is 16934497. The reversal of 16934491 is 19443961.

It is a cyclic number.

It is not a de Polignac number, because 16934491 - 2³ = 16934483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16934491.

It is not an unprimeable number, because it can be changed into a prime (16934497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20476 + ... + 21286.

It is an arithmetic number, because the mean of its divisors is an integer number (1282960).

Almost surely, 2^16934491 is an apocalyptic number.

16934491 is a deficient number, since it is larger than the sum of its proper divisors (3592869).

16934491 is a wasteful number, since it uses less digits than its factorization.

16934491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994.

The product of its digits is 23328, while the sum is 37.

The square root of 16934491 is about 4115.1538245854. The cubic root of 16934491 is about 256.7974553162.

The spelling of 16934491 in words is "sixteen million, nine hundred thirty-four thousand, four hundred ninety-one".