16812836 has 6 divisors (see below), whose sum is σ = 29422470. Its totient is φ = 8406416.

The previous prime is 16812833. The next prime is 16812877. The reversal of 16812836 is 63821861.

It can be written as a sum of positive squares in only one way, i.e., 16080100 + 732736 = 4010^2 + 856^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16812796 and 16812805.

It is not an unprimeable number, because it can be changed into a prime (16812833) by changing a digit.

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 as a sum of consecutive naturals, namely, 2101601 + ... + 2101608.

It is an arithmetic number, because the mean of its divisors is an integer number (4903745).

Almost surely, 2^16812836 is an apocalyptic number.

It is an amenable number.

16812836 is a deficient number, since it is larger than the sum of its proper divisors (12609634).

16812836 is a wasteful number, since it uses less digits than its factorization.

16812836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4203213 (or 4203211 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 16812836 is about 4100.3458390726. The cubic root of 16812836 is about 256.1810446229.

The spelling of 16812836 in words is "sixteen million, eight hundred twelve thousand, eight hundred thirty-six".