103990736 has 30 divisors (see below), whose sum is σ = 203680230. Its totient is φ = 51433984.

The previous prime is 103990729. The next prime is 103990739. The reversal of 103990736 is 637099301.

It can be written as a sum of positive squares in 3 ways, for example, as 846400 + 103144336 = 920^2 + 10156^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 103990736.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103990739) 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, 204050 + ... + 204558.

It is an arithmetic number, because the mean of its divisors is an integer number (6789341).

Almost surely, 2^103990736 is an apocalyptic number.

103990736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

103990736 is a deficient number, since it is larger than the sum of its proper divisors (99689494).

103990736 is an equidigital number, since it uses as much as digits as its factorization.

103990736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743 (or 624 counting only the distinct ones).

The product of its (nonzero) digits is 30618, while the sum is 38.

The square root of 103990736 is about 10197.5848121013. The cubic root of 103990736 is about 470.2529738189.

The spelling of 103990736 in words is "one hundred three million, nine hundred ninety thousand, seven hundred thirty-six".