16979870 has 8 divisors (see below), whose sum is σ = 30563784. Its totient is φ = 6791944.

The previous prime is 16979869. The next prime is 16979887. The reversal of 16979870 is 7897961.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 848984 + ... + 849003.

It is an arithmetic number, because the mean of its divisors is an integer number (3820473).

Almost surely, 2^16979870 is an apocalyptic number.

16979870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16979870 is a deficient number, since it is larger than the sum of its proper divisors (13583914).

16979870 is a wasteful number, since it uses less digits than its factorization.

16979870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697994.

The product of its (nonzero) digits is 190512, while the sum is 47.

The square root of 16979870 is about 4120.6637814799. The cubic root of 16979870 is about 257.0266289838.

The spelling of 16979870 in words is "sixteen million, nine hundred seventy-nine thousand, eight hundred seventy".