108720436 has 18 divisors (see below), whose sum is σ = 209130530. Its totient is φ = 49418160.

The previous prime is 108720427. The next prime is 108720439. The reversal of 108720436 is 634027801.

It can be written as a sum of positive squares in only one way, i.e., 108284836 + 435600 = 10406^2 + 660^2 .

It is a junction number, because it is equal to n+sod(n) for n = 108720398 and 108720407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108720439) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111831 + ... + 112798.

Almost surely, 2^108720436 is an apocalyptic number.

It is an amenable number.

108720436 is a deficient number, since it is larger than the sum of its proper divisors (100410094).

108720436 is a wasteful number, since it uses less digits than its factorization.

108720436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224655 (or 224642 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 108720436 is about 10426.9092256526. The cubic root of 108720436 is about 477.2768779311.

The spelling of 108720436 in words is "one hundred eight million, seven hundred twenty thousand, four hundred thirty-six".