16669479 has 16 divisors (see below), whose sum is σ = 23619200. Its totient is φ = 10427616.

The previous prime is 16669463. The next prime is 16669483. The reversal of 16669479 is 97496661.

It is not a de Polignac number, because 16669479 - 2⁴ = 16669463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16669459) 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, 4872 + ... + 7554.

It is an arithmetic number, because the mean of its divisors is an integer number (1476200).

Almost surely, 2^16669479 is an apocalyptic number.

16669479 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

16669479 is a deficient number, since it is larger than the sum of its proper divisors (6949721).

16669479 is a wasteful number, since it uses less digits than its factorization.

16669479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2814.

The product of its digits is 489888, while the sum is 48.

The square root of 16669479 is about 4082.8273291924. The cubic root of 16669479 is about 255.4508441069.

The spelling of 16669479 in words is "sixteen million, six hundred sixty-nine thousand, four hundred seventy-nine".