10821836 has 12 divisors (see below), whose sum is σ = 19008528. Its totient is φ = 5390832.

The previous prime is 10821829. The next prime is 10821851. The reversal of 10821836 is 63812801.

It is a super-2 number, since 2×10821836² = 234224268821792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10821799 and 10821808.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3776 + ... + 5991.

It is an arithmetic number, because the mean of its divisors is an integer number (1584044).

Almost surely, 2^10821836 is an apocalyptic number.

It is an amenable number.

10821836 is a deficient number, since it is larger than the sum of its proper divisors (8186692).

10821836 is a wasteful number, since it uses less digits than its factorization.

10821836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10048 (or 10046 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 10821836 is about 3289.6559090580. The cubic root of 10821836 is about 221.1907609499.

The spelling of 10821836 in words is "ten million, eight hundred twenty-one thousand, eight hundred thirty-six".