16855347 has 12 divisors (see below), whose sum is σ = 23874776. Its totient is φ = 10575360.

The previous prime is 16855331. The next prime is 16855357. The reversal of 16855347 is 74355861.

It is not a de Polignac number, because 16855347 - 2⁴ = 16855331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16855357) 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, 8854 + ... + 10587.

Almost surely, 2^16855347 is an apocalyptic number.

16855347 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

16855347 is a deficient number, since it is larger than the sum of its proper divisors (7019429).

16855347 is a wasteful number, since it uses less digits than its factorization.

16855347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19478 (or 19461 counting only the distinct ones).

The product of its digits is 100800, while the sum is 39.

The square root of 16855347 is about 4105.5263974307. The cubic root of 16855347 is about 256.3967795218.

The spelling of 16855347 in words is "sixteen million, eight hundred fifty-five thousand, three hundred forty-seven".