16816534 has 16 divisors (see below), whose sum is σ = 29318400. Its totient is φ = 7084584.

The previous prime is 16816517. The next prime is 16816559. The reversal of 16816534 is 43561861.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 16816534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9354 + ... + 11005.

It is an arithmetic number, because the mean of its divisors is an integer number (1832400).

Almost surely, 2^16816534 is an apocalyptic number.

16816534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16816534 is a deficient number, since it is larger than the sum of its proper divisors (12501866).

16816534 is a wasteful number, since it uses less digits than its factorization.

16816534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20427.

The product of its digits is 17280, while the sum is 34.

The square root of 16816534 is about 4100.7967518520. The cubic root of 16816534 is about 256.1998256711.

The spelling of 16816534 in words is "sixteen million, eight hundred sixteen thousand, five hundred thirty-four".