16704505 has 16 divisors (see below), whose sum is σ = 21141504. Its totient is φ = 12651840.

The previous prime is 16704503. The next prime is 16704529. The reversal of 16704505 is 50540761.

It is not a de Polignac number, because 16704505 - 2¹ = 16704503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16704503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6139 + ... + 8431.

It is an arithmetic number, because the mean of its divisors is an integer number (1321344).

Almost surely, 2^16704505 is an apocalyptic number.

It is an amenable number.

16704505 is a deficient number, since it is larger than the sum of its proper divisors (4436999).

16704505 is a wasteful number, since it uses less digits than its factorization.

16704505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2376.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 16704505 is about 4087.1145078160. The cubic root of 16704505 is about 255.6296371729.

The spelling of 16704505 in words is "sixteen million, seven hundred four thousand, five hundred five".