16940761 has 8 divisors (see below), whose sum is σ = 18169920. Its totient is φ = 15745392.

The previous prime is 16940741. The next prime is 16940767. The reversal of 16940761 is 16704961.

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 16940761 - 2¹⁹ = 16416473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16940767) 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, 7405 + ... + 9418.

It is an arithmetic number, because the mean of its divisors is an integer number (2271240).

Almost surely, 2^16940761 is an apocalyptic number.

It is an amenable number.

16940761 is a deficient number, since it is larger than the sum of its proper divisors (1229159).

16940761 is a wasteful number, since it uses less digits than its factorization.

16940761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16895.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 16940761 is about 4115.9155725063. The cubic root of 16940761 is about 256.8291445153.

The spelling of 16940761 in words is "sixteen million, nine hundred forty thousand, seven hundred sixty-one".