16859453 has 8 divisors (see below), whose sum is σ = 18200448. Its totient is φ = 15524784.

The previous prime is 16859431. The next prime is 16859471. The reversal of 16859453 is 35495861.

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 16859453 - 2¹² = 16855357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16859453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16859653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5000 + ... + 7662.

It is an arithmetic number, because the mean of its divisors is an integer number (2275056).

Almost surely, 2^16859453 is an apocalyptic number.

16859453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16859453 is a deficient number, since it is larger than the sum of its proper divisors (1340995).

16859453 is a wasteful number, since it uses less digits than its factorization.

16859453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3163.

The product of its digits is 129600, while the sum is 41.

The square root of 16859453 is about 4106.0264246592. The cubic root of 16859453 is about 256.4175974400.

The spelling of 16859453 in words is "sixteen million, eight hundred fifty-nine thousand, four hundred fifty-three".