16979386 has 8 divisors (see below), whose sum is σ = 25489044. Its totient is φ = 8483040.

The previous prime is 16979383. The next prime is 16979387. The reversal of 16979386 is 68397961.

It can be written as a sum of positive squares in 2 ways, for example, as 16966161 + 13225 = 4119^2 + 115^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (16979383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 976 + ... + 5908.

Almost surely, 2^16979386 is an apocalyptic number.

16979386 is a deficient number, since it is larger than the sum of its proper divisors (8509658).

16979386 is a wasteful number, since it uses less digits than its factorization.

16979386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6656.

The product of its digits is 489888, while the sum is 49.

The square root of 16979386 is about 4120.6050526591. The cubic root of 16979386 is about 257.0241868358.

The spelling of 16979386 in words is "sixteen million, nine hundred seventy-nine thousand, three hundred eighty-six".