16919953 has 8 divisors (see below), whose sum is σ = 17337600. Its totient is φ = 16504800.

The previous prime is 16919923. The next prime is 16919957. The reversal of 16919953 is 35991961.

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 16919953 - 2¹⁷ = 16788881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16919957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27853 + ... + 28453.

It is an arithmetic number, because the mean of its divisors is an integer number (2167200).

Almost surely, 2^16919953 is an apocalyptic number.

It is an amenable number.

16919953 is a deficient number, since it is larger than the sum of its proper divisors (417647).

16919953 is an equidigital number, since it uses as much as digits as its factorization.

16919953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247.

The product of its digits is 65610, while the sum is 43.

The square root of 16919953 is about 4113.3870471912. The cubic root of 16919953 is about 256.7239487225.

The spelling of 16919953 in words is "sixteen million, nine hundred nineteen thousand, nine hundred fifty-three".