16394979 has 8 divisors (see below), whose sum is σ = 22230720. Its totient is φ = 10744616.

The previous prime is 16394977. The next prime is 16394999. The reversal of 16394979 is 97949361.

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 16394979 - 2¹ = 16394977 is a prime.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (16394971) 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, 46137 + ... + 46490.

It is an arithmetic number, because the mean of its divisors is an integer number (2778840).

Almost surely, 2^16394979 is an apocalyptic number.

16394979 is a deficient number, since it is larger than the sum of its proper divisors (5835741).

16394979 is an equidigital number, since it uses as much as digits as its factorization.

16394979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92689.

The product of its digits is 367416, while the sum is 48.

The square root of 16394979 is about 4049.0713750192. The cubic root of 16394979 is about 254.0408876662.

The spelling of 16394979 in words is "sixteen million, three hundred ninety-four thousand, nine hundred seventy-nine".