16940677 has 4 divisors (see below), whose sum is σ = 18243820. Its totient is φ = 15637536.

The previous prime is 16940639. The next prime is 16940689. The reversal of 16940677 is 77604961.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 948676 + 15992001 = 974^2 + 3999^2 .

It is a cyclic number.

It is not a de Polignac number, because 16940677 - 2¹¹ = 16938629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16940617) 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 3 ways as a sum of consecutive naturals, for example, 651552 + ... + 651577.

It is an arithmetic number, because the mean of its divisors is an integer number (4560955).

Almost surely, 2^16940677 is an apocalyptic number.

It is an amenable number.

16940677 is a deficient number, since it is larger than the sum of its proper divisors (1303143).

16940677 is a wasteful number, since it uses less digits than its factorization.

16940677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303142.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 16940677 is about 4115.9053682027. The cubic root of 16940677 is about 256.8287200227.

The spelling of 16940677 in words is "sixteen million, nine hundred forty thousand, six hundred seventy-seven".