16689070 has 32 divisors (see below), whose sum is σ = 32099328. Its totient is φ = 6225408.

The previous prime is 16689061. The next prime is 16689073. The reversal of 16689070 is 7098661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16689073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21204 + ... + 21976.

It is an arithmetic number, because the mean of its divisors is an integer number (1003104).

Almost surely, 2^16689070 is an apocalyptic number.

16689070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16689070 is a deficient number, since it is larger than the sum of its proper divisors (15410258).

16689070 is a wasteful number, since it uses less digits than its factorization.

16689070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 16689070 is about 4085.2258199517. The cubic root of 16689070 is about 255.5508787914.

The spelling of 16689070 in words is "sixteen million, six hundred eighty-nine thousand, seventy".