16869957 has 16 divisors (see below), whose sum is σ = 24319680. Its totient is φ = 10340352.

The previous prime is 16869947. The next prime is 16869989. The reversal of 16869957 is 75996861.

It is not a de Polignac number, because 16869957 - 2⁷ = 16869829 is a prime.

It is a super-3 number, since 3×16869957³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16869907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11269 + ... + 12677.

It is an arithmetic number, because the mean of its divisors is an integer number (1519980).

Almost surely, 2^16869957 is an apocalyptic number.

It is an amenable number.

16869957 is a deficient number, since it is larger than the sum of its proper divisors (7449723).

16869957 is a wasteful number, since it uses less digits than its factorization.

16869957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732.

The product of its digits is 816480, while the sum is 51.

The square root of 16869957 is about 4107.3053210104. The cubic root of 16869957 is about 256.4708386152.

It can be divided in two parts, 168 and 69957, that added together give a triangular number (70125 = T₃₇₄).

The spelling of 16869957 in words is "sixteen million, eight hundred sixty-nine thousand, nine hundred fifty-seven".