16448979 has 32 divisors (see below), whose sum is σ = 24952320. Its totient is φ = 9580032.

The previous prime is 16448977. The next prime is 16448981. The reversal of 16448979 is 97984461.

It is an interprime number because it is at equal distance from previous prime (16448977) and next prime (16448981).

It is not a de Polignac number, because 16448979 - 2¹ = 16448977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16448977) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43212 + ... + 43590.

It is an arithmetic number, because the mean of its divisors is an integer number (779760).

Almost surely, 2^16448979 is an apocalyptic number.

16448979 is a deficient number, since it is larger than the sum of its proper divisors (8503341).

16448979 is a wasteful number, since it uses less digits than its factorization.

16448979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459.

The product of its digits is 435456, while the sum is 48.

The square root of 16448979 is about 4055.7340889166. The cubic root of 16448979 is about 254.3194927654.

The spelling of 16448979 in words is "sixteen million, four hundred forty-eight thousand, nine hundred seventy-nine".