103828939 has 4 divisors (see below), whose sum is σ = 109293640. Its totient is φ = 98364240.

The previous prime is 103828883. The next prime is 103828943. The reversal of 103828939 is 939828301.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 103828939 - 2⁷ = 103828811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103828895 and 103828904.

It is not an unprimeable number, because it can be changed into a prime (103820939) 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, 2732322 + ... + 2732359.

It is an arithmetic number, because the mean of its divisors is an integer number (27323410).

Almost surely, 2^103828939 is an apocalyptic number.

103828939 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

103828939 is a deficient number, since it is larger than the sum of its proper divisors (5464701).

103828939 is an equidigital number, since it uses as much as digits as its factorization.

103828939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5464700.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 103828939 is about 10189.6486200457. The cubic root of 103828939 is about 470.0089616520.

It can be divided in two parts, 10382 and 8939, that added together give a square (19321 = 139²).

The spelling of 103828939 in words is "one hundred three million, eight hundred twenty-eight thousand, nine hundred thirty-nine".