105328778 has 4 divisors (see below), whose sum is σ = 157993170. Its totient is φ = 52664388.

The previous prime is 105328763. The next prime is 105328781. The reversal of 105328778 is 877823501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 877823501 = 1543 ⋅568907.

It can be written as a sum of positive squares in only one way, i.e., 61199329 + 44129449 = 7823^2 + 6643^2 .

It is a super-2 number, since 2×105328778² = 22188302949946568, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 26332193 + ... + 26332196.

Almost surely, 2^105328778 is an apocalyptic number.

105328778 is a deficient number, since it is larger than the sum of its proper divisors (52664392).

105328778 is an equidigital number, since it uses as much as digits as its factorization.

105328778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52664391.

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 105328778 is about 10262.9809509713. The cubic root of 105328778 is about 472.2612894235.

The spelling of 105328778 in words is "one hundred five million, three hundred twenty-eight thousand, seven hundred seventy-eight".