16863245 has 8 divisors (see below), whose sum is σ = 23126784. Its totient is φ = 11563344.

The previous prime is 16863233. The next prime is 16863247. The reversal of 16863245 is 54236861.

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 16863245 - 2¹² = 16859149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 481807 = 16863245 / (1 + 6 + 8 + 6 + 3 + 2 + 4 + 5).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16863247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240869 + ... + 240938.

It is an arithmetic number, because the mean of its divisors is an integer number (2890848).

Almost surely, 2^16863245 is an apocalyptic number.

It is an amenable number.

16863245 is a deficient number, since it is larger than the sum of its proper divisors (6263539).

16863245 is an equidigital number, since it uses as much as digits as its factorization.

16863245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481819.

The product of its digits is 34560, while the sum is 35.

The square root of 16863245 is about 4106.4881589991. The cubic root of 16863245 is about 256.4368203381.

The spelling of 16863245 in words is "sixteen million, eight hundred sixty-three thousand, two hundred forty-five".