16693857 has 12 divisors (see below), whose sum is σ = 25006800. Its totient is φ = 11129076.

The previous prime is 16693801. The next prime is 16693877. The reversal of 16693857 is 75839661.

It is a happy number.

It is not a de Polignac number, because 16693857 - 2⁶ = 16693793 is a prime.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (16693877) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34107 + ... + 34592.

It is an arithmetic number, because the mean of its divisors is an integer number (2083900).

Almost surely, 2^16693857 is an apocalyptic number.

It is an amenable number.

16693857 is a deficient number, since it is larger than the sum of its proper divisors (8312943).

16693857 is an frugal number, since it uses more digits than its factorization.

16693857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68714 (or 68702 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 16693857 is about 4085.8116696686. The cubic root of 16693857 is about 255.5753100531.

The spelling of 16693857 in words is "sixteen million, six hundred ninety-three thousand, eight hundred fifty-seven".