16672929 has 32 divisors (see below), whose sum is σ = 27605760. Its totient is φ = 8716032.

The previous prime is 16672927. The next prime is 16672933. The reversal of 16672929 is 92927661.

It is not a de Polignac number, because 16672929 - 2¹ = 16672927 is a prime.

It is a super-2 number, since 2×16672929² = 555973122878082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16672927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42667 + ... + 43055.

It is an arithmetic number, because the mean of its divisors is an integer number (862680).

Almost surely, 2^16672929 is an apocalyptic number.

It is an amenable number.

16672929 is a deficient number, since it is larger than the sum of its proper divisors (10932831).

16672929 is a wasteful number, since it uses less digits than its factorization.

16672929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569.

The product of its digits is 81648, while the sum is 42.

The square root of 16672929 is about 4083.2498086696. The cubic root of 16672929 is about 255.4684660257.

The spelling of 16672929 in words is "sixteen million, six hundred seventy-two thousand, nine hundred twenty-nine".