16949777 has 16 divisors (see below), whose sum is σ = 19041792. Its totient is φ = 14981760.

The previous prime is 16949773. The next prime is 16949789. The reversal of 16949777 is 77794961.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 16949777 - 2² = 16949773 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16949773) 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 15 ways as a sum of consecutive naturals, for example, 55058 + ... + 55364.

It is an arithmetic number, because the mean of its divisors is an integer number (1190112).

Almost surely, 2^16949777 is an apocalyptic number.

It is an amenable number.

16949777 is a deficient number, since it is larger than the sum of its proper divisors (2092015).

16949777 is a wasteful number, since it uses less digits than its factorization.

16949777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488.

The product of its digits is 666792, while the sum is 50.

The square root of 16949777 is about 4117.0106873799. The cubic root of 16949777 is about 256.8746985668.

The spelling of 16949777 in words is "sixteen million, nine hundred forty-nine thousand, seven hundred seventy-seven".