16708505 has 32 divisors (see below), whose sum is σ = 23500800. Its totient is φ = 11275200.

The previous prime is 16708499. The next prime is 16708507. The reversal of 16708505 is 50580761.

It is not a de Polignac number, because 16708505 - 2⁶ = 16708441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16708507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61520 + ... + 61790.

It is an arithmetic number, because the mean of its divisors is an integer number (734400).

Almost surely, 2^16708505 is an apocalyptic number.

It is an amenable number.

16708505 is a deficient number, since it is larger than the sum of its proper divisors (6792295).

16708505 is a wasteful number, since it uses less digits than its factorization.

16708505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 16708505 is about 4087.6038213115. The cubic root of 16708505 is about 255.6500395922.

The spelling of 16708505 in words is "sixteen million, seven hundred eight thousand, five hundred five".