108307720 has 32 divisors (see below), whose sum is σ = 244759320. Its totient is φ = 43133440.

The previous prime is 108307681. The next prime is 108307747. The reversal of 108307720 is 27703801.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 44275716 + 64032004 = 6654^2 + 8002^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3510 + ... + 15130.

Almost surely, 2^108307720 is an apocalyptic number.

108307720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108307720 is an abundant number, since it is smaller than the sum of its proper divisors (136451600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

108307720 is a wasteful number, since it uses less digits than its factorization.

108307720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11865 (or 11861 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 108307720 is about 10407.0994998607. The cubic root of 108307720 is about 476.6721784182.

The spelling of 108307720 in words is "one hundred eight million, three hundred seven thousand, seven hundred twenty".