16996718 has 4 divisors (see below), whose sum is σ = 25495080. Its totient is φ = 8498358.

The previous prime is 16996717. The next prime is 16996723. The reversal of 16996718 is 81769961.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16996717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4249178 + ... + 4249181.

It is an arithmetic number, because the mean of its divisors is an integer number (6373770).

Almost surely, 2^16996718 is an apocalyptic number.

16996718 is a deficient number, since it is larger than the sum of its proper divisors (8498362).

16996718 is an equidigital number, since it uses as much as digits as its factorization.

16996718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8498361.

The product of its digits is 163296, while the sum is 47.

The square root of 16996718 is about 4122.7076054457. The cubic root of 16996718 is about 257.1116110476. Note that the first 3 decimals are identical.

The spelling of 16996718 in words is "sixteen million, nine hundred ninety-six thousand, seven hundred eighteen".