16740861 has 8 divisors (see below), whose sum is σ = 22353120. Its totient is φ = 11144592.

The previous prime is 16740853. The next prime is 16740907. The reversal of 16740861 is 16804761.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16740861 - 2³ = 16740853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16740161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1291 + ... + 5928.

It is an arithmetic number, because the mean of its divisors is an integer number (2794140).

Almost surely, 2^16740861 is an apocalyptic number.

It is an amenable number.

16740861 is a deficient number, since it is larger than the sum of its proper divisors (5612259).

16740861 is an equidigital number, since it uses as much as digits as its factorization.

16740861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7995.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 16740861 is about 4091.5597270479. The cubic root of 16740861 is about 255.8149551839.

The spelling of 16740861 in words is "sixteen million, seven hundred forty thousand, eight hundred sixty-one".