68844836 has 12 divisors (see below), whose sum is σ = 121584540. Its totient is φ = 34106400.

The previous prime is 68844833. The next prime is 68844851. The reversal of 68844836 is 63844886.

It can be written as a sum of positive squares in 2 ways, for example, as 34105600 + 34739236 = 5840^2 + 5894^2 .

It is a super-2 number, since 2×68844836² = 9479222887733792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68844833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78515 + ... + 79386.

It is an arithmetic number, because the mean of its divisors is an integer number (10132045).

Almost surely, 2^68844836 is an apocalyptic number.

It is an amenable number.

68844836 is a deficient number, since it is larger than the sum of its proper divisors (52739704).

68844836 is a wasteful number, since it uses less digits than its factorization.

68844836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158014 (or 158012 counting only the distinct ones).

The product of its digits is 884736, while the sum is 47.

The square root of 68844836 is about 8297.2788310385. The cubic root of 68844836 is about 409.8489151828.

The spelling of 68844836 in words is "sixty-eight million, eight hundred forty-four thousand, eight hundred thirty-six".