16828690 has 16 divisors (see below), whose sum is σ = 30707928. Its totient is φ = 6638976.

The previous prime is 16828687. The next prime is 16828711. The reversal of 16828690 is 9682861.

It can be written as a sum of positive squares in 4 ways, for example, as 15452761 + 1375929 = 3931^2 + 1173^2 .

It is a super-2 number, since 2×16828690² = 566409614232200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10797 + ... + 12256.

Almost surely, 2^16828690 is an apocalyptic number.

16828690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16828690 is a deficient number, since it is larger than the sum of its proper divisors (13879238).

16828690 is a wasteful number, since it uses less digits than its factorization.

16828690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23133.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 16828690 is about 4102.2786351003. The cubic root of 16828690 is about 256.2615430057.

The spelling of 16828690 in words is "sixteen million, eight hundred twenty-eight thousand, six hundred ninety".