11912836 has 12 divisors (see below), whose sum is σ = 22451212. Its totient is φ = 5498208.

The previous prime is 11912821. The next prime is 11912839. The reversal of 11912836 is 63821911.

11912836 = 693² + 694² + ... + 716².

It can be written as a sum of positive squares in 2 ways, for example, as 3444736 + 8468100 = 1856^2 + 2910^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 11912798 and 11912807.

It is not an unprimeable number, because it can be changed into a prime (11912839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114495 + ... + 114598.

Almost surely, 2^11912836 is an apocalyptic number.

It is an amenable number.

11912836 is a deficient number, since it is larger than the sum of its proper divisors (10538376).

11912836 is a wasteful number, since it uses less digits than its factorization.

11912836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229110 (or 229108 counting only the distinct ones).

The product of its digits is 2592, while the sum is 31.

The square root of 11912836 is about 3451.4976459502. The cubic root of 11912836 is about 228.3871794203.

The spelling of 11912836 in words is "eleven million, nine hundred twelve thousand, eight hundred thirty-six".