16689097 has 8 divisors (see below), whose sum is σ = 17029376. Its totient is φ = 16351632.

The previous prime is 16689077. The next prime is 16689103. The reversal of 16689097 is 79098661.

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 16689097 - 2¹⁵ = 16656329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16689077) 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, 14383 + ... + 15499.

It is an arithmetic number, because the mean of its divisors is an integer number (2128672).

Almost surely, 2^16689097 is an apocalyptic number.

It is an amenable number.

16689097 is a deficient number, since it is larger than the sum of its proper divisors (340279).

16689097 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (16689096) it forms an eRAP, since the sums of their prime factors are consecutive (1406 and 1407).

16689097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 16689097 is about 4085.2291245412. The cubic root of 16689097 is about 255.5510166036.

The spelling of 16689097 in words is "sixteen million, six hundred eighty-nine thousand, ninety-seven".