16478879 has 6 divisors (see below), whose sum is σ = 17227056. Its totient is φ = 15761900.

The previous prime is 16478863. The next prime is 16478881. The reversal of 16478879 is 97887461.

It is not a de Polignac number, because 16478879 - 2⁴ = 16478863 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 (16478849) 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 5 ways as a sum of consecutive naturals, for example, 15047 + ... + 16104.

It is an arithmetic number, because the mean of its divisors is an integer number (2871176).

Almost surely, 2^16478879 is an apocalyptic number.

16478879 is a deficient number, since it is larger than the sum of its proper divisors (748177).

16478879 is an equidigital number, since it uses as much as digits as its factorization.

16478879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31197 (or 31174 counting only the distinct ones).

The product of its digits is 677376, while the sum is 50.

The square root of 16478879 is about 4059.4185544238. The cubic root of 16478879 is about 254.4734952320.

The spelling of 16478879 in words is "sixteen million, four hundred seventy-eight thousand, eight hundred seventy-nine".