16977149 has 8 divisors (see below), whose sum is σ = 19434048. Its totient is φ = 14528160.

The previous prime is 16977143. The next prime is 16977161. The reversal of 16977149 is 94177961.

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 16977149 - 2⁴ = 16977133 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16977143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3734 + ... + 6920.

It is an arithmetic number, because the mean of its divisors is an integer number (2429256).

Almost surely, 2^16977149 is an apocalyptic number.

It is an amenable number.

16977149 is a deficient number, since it is larger than the sum of its proper divisors (2456899).

16977149 is an equidigital number, since it uses as much as digits as its factorization.

16977149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3955.

The product of its digits is 95256, while the sum is 44.

The square root of 16977149 is about 4120.3336029987. Note that the first 3 decimals coincide. The cubic root of 16977149 is about 257.0128988666.

The spelling of 16977149 in words is "sixteen million, nine hundred seventy-seven thousand, one hundred forty-nine".