16850345 has 4 divisors (see below), whose sum is σ = 20220420. Its totient is φ = 13480272.

The previous prime is 16850333. The next prime is 16850347. The reversal of 16850345 is 54305861.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54305861 = 43 ⋅1262927.

It can be written as a sum of positive squares in 2 ways, for example, as 9320809 + 7529536 = 3053^2 + 2744^2 .

It is a cyclic number.

It is not a de Polignac number, because 16850345 - 2⁸ = 16850089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16850347) 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, 1685030 + ... + 1685039.

It is an arithmetic number, because the mean of its divisors is an integer number (5055105).

Almost surely, 2^16850345 is an apocalyptic number.

It is an amenable number.

16850345 is a deficient number, since it is larger than the sum of its proper divisors (3370075).

16850345 is an equidigital number, since it uses as much as digits as its factorization.

16850345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3370074.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 16850345 is about 4104.9171733422. The cubic root of 16850345 is about 256.3714142065.

The spelling of 16850345 in words is "sixteen million, eight hundred fifty thousand, three hundred forty-five".