105507728 has 10 divisors (see below), whose sum is σ = 204421254. Its totient is φ = 52753856.

The previous prime is 105507707. The next prime is 105507751. The reversal of 105507728 is 827705501.

It can be written as a sum of positive squares in only one way, i.e., 100962304 + 4545424 = 10048^2 + 2132^2 .

It is a super-2 number, since 2×105507728² = 22263761335443968, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3297101 + ... + 3297132.

Almost surely, 2^105507728 is an apocalyptic number.

It is an amenable number.

105507728 is a deficient number, since it is larger than the sum of its proper divisors (98913526).

105507728 is an equidigital number, since it uses as much as digits as its factorization.

105507728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6594241 (or 6594235 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 35.

The square root of 105507728 is about 10271.6954783521. The cubic root of 105507728 is about 472.5285900415.

The spelling of 105507728 in words is "one hundred five million, five hundred seven thousand, seven hundred twenty-eight".