16969887 has 18 divisors (see below), whose sum is σ = 26944736. Its totient is φ = 10284120.

The previous prime is 16969877. The next prime is 16969889. The reversal of 16969887 is 78896961.

It is not a de Polignac number, because 16969887 - 2¹⁶ = 16904351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16969889) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6703 + ... + 8880.

Almost surely, 2^16969887 is an apocalyptic number.

16969887 is a deficient number, since it is larger than the sum of its proper divisors (9974849).

16969887 is a wasteful number, since it uses less digits than its factorization.

16969887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15611 (or 15597 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The square root of 16969887 is about 4119.4522694164. The cubic root of 16969887 is about 256.9762477607.

The spelling of 16969887 in words is "sixteen million, nine hundred sixty-nine thousand, eight hundred eighty-seven".