16679505 has 8 divisors (see below), whose sum is σ = 26687232. Its totient is φ = 8895728.

The previous prime is 16679503. The next prime is 16679513. The reversal of 16679505 is 50597661.

16679505 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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 16679505 - 2¹ = 16679503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16679503) 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, 555969 + ... + 555998.

It is an arithmetic number, because the mean of its divisors is an integer number (3335904).

Almost surely, 2^16679505 is an apocalyptic number.

16679505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16679505 is a deficient number, since it is larger than the sum of its proper divisors (10007727).

16679505 is a wasteful number, since it uses less digits than its factorization.

16679505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111975.

The product of its (nonzero) digits is 56700, while the sum is 39.

The square root of 16679505 is about 4084.0549702471. The cubic root of 16679505 is about 255.5020482039.

The spelling of 16679505 in words is "sixteen million, six hundred seventy-nine thousand, five hundred five".