103821436 has 12 divisors (see below), whose sum is σ = 185913112. Its totient is φ = 50703408.

The previous prime is 103821433. The next prime is 103821461. The reversal of 103821436 is 634128301.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103821433) 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, 301635 + ... + 301978.

Almost surely, 2^103821436 is an apocalyptic number.

It is an amenable number.

103821436 is a deficient number, since it is larger than the sum of its proper divisors (82091676).

103821436 is a wasteful number, since it uses less digits than its factorization.

103821436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603660 (or 603658 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 103821436 is about 10189.2804456448. The cubic root of 103821436 is about 469.9976399459.

Adding to 103821436 its reverse (634128301), we get a palindrome (737949737).

The spelling of 103821436 in words is "one hundred three million, eight hundred twenty-one thousand, four hundred thirty-six".