16977955 has 8 divisors (see below), whose sum is σ = 20395872. Its totient is φ = 13567488.

The previous prime is 16977953. The next prime is 16977959. The reversal of 16977955 is 55977961.

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 16977955 - 2¹ = 16977953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16977899 and 16977908.

It is not an unprimeable number, because it can be changed into a prime (16977953) 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, 6979 + ... + 9091.

It is an arithmetic number, because the mean of its divisors is an integer number (2549484).

Almost surely, 2^16977955 is an apocalyptic number.

16977955 is a deficient number, since it is larger than the sum of its proper divisors (3417917).

16977955 is a wasteful number, since it uses less digits than its factorization.

16977955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3725.

The product of its digits is 595350, while the sum is 49.

The square root of 16977955 is about 4120.4314094522. The cubic root of 16977955 is about 257.0169660811.

The spelling of 16977955 in words is "sixteen million, nine hundred seventy-seven thousand, nine hundred fifty-five".