16880857 has 4 divisors (see below), whose sum is σ = 19292416. Its totient is φ = 14469300.

The previous prime is 16880839. The next prime is 16880863. The reversal of 16880857 is 75808861.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75808861 = 1213 ⋅62497.

It is a cyclic number.

It is not a de Polignac number, because 16880857 - 2¹¹ = 16878809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16880887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1205769 + ... + 1205782.

It is an arithmetic number, because the mean of its divisors is an integer number (4823104).

Almost surely, 2^16880857 is an apocalyptic number.

It is an amenable number.

16880857 is a deficient number, since it is larger than the sum of its proper divisors (2411559).

16880857 is an equidigital number, since it uses as much as digits as its factorization.

16880857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2411558.

The product of its (nonzero) digits is 107520, while the sum is 43.

The square root of 16880857 is about 4108.6320107793. The cubic root of 16880857 is about 256.5260636182.

The spelling of 16880857 in words is "sixteen million, eight hundred eighty thousand, eight hundred fifty-seven".