103993777 has 4 divisors (see below), whose sum is σ = 110111076. Its totient is φ = 97876480.

The previous prime is 103993759. The next prime is 103993781. The reversal of 103993777 is 777399301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 777399301 = 7 ⋅111057043.

It can be written as a sum of positive squares in 2 ways, for example, as 64064016 + 39929761 = 8004^2 + 6319^2 .

It is not a de Polignac number, because 103993777 - 2¹⁹ = 103469489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103993277) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 3058624 + ... + 3058657.

It is an arithmetic number, because the mean of its divisors is an integer number (27527769).

Almost surely, 2^103993777 is an apocalyptic number.

103993777 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

103993777 is a deficient number, since it is larger than the sum of its proper divisors (6117299).

103993777 is an equidigital number, since it uses as much as digits as its factorization.

103993777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6117298.

The product of its (nonzero) digits is 250047, while the sum is 46.

The square root of 103993777 is about 10197.7339149440. The cubic root of 103993777 is about 470.2575576418.

The spelling of 103993777 in words is "one hundred three million, nine hundred ninety-three thousand, seven hundred seventy-seven".