16677121 has 8 divisors (see below), whose sum is σ = 17236800. Its totient is φ = 16123248.

The previous prime is 16677103. The next prime is 16677131. The reversal of 16677121 is 12177661.

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 16677121 - 2¹¹ = 16675073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16677131) 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 7 ways as a sum of consecutive naturals, for example, 4830 + ... + 7528.

It is an arithmetic number, because the mean of its divisors is an integer number (2154600).

Almost surely, 2^16677121 is an apocalyptic number.

It is an amenable number.

16677121 is a deficient number, since it is larger than the sum of its proper divisors (559679).

16677121 is a wasteful number, since it uses less digits than its factorization.

16677121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2903.

The product of its digits is 3528, while the sum is 31.

The square root of 16677121 is about 4083.7630930307. The cubic root of 16677121 is about 255.4898746630.

The spelling of 16677121 in words is "sixteen million, six hundred seventy-seven thousand, one hundred twenty-one".