16972386 has 8 divisors (see below), whose sum is σ = 33944784. Its totient is φ = 5657460.

The previous prime is 16972379. The next prime is 16972391. The reversal of 16972386 is 68327961.

It is a happy number.

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

16972386 is an admirable number.

It is an unprimeable number.

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, 1414360 + ... + 1414371.

It is an arithmetic number, because the mean of its divisors is an integer number (4243098).

Almost surely, 2^16972386 is an apocalyptic number.

16972386 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16972386 is a wasteful number, since it uses less digits than its factorization.

16972386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2828736.

The product of its digits is 108864, while the sum is 42.

The square root of 16972386 is about 4119.7555752739. The cubic root of 16972386 is about 256.9888613219.

The spelling of 16972386 in words is "sixteen million, nine hundred seventy-two thousand, three hundred eighty-six".