103287839 has 4 divisors (see below), whose sum is σ = 104595360. Its totient is φ = 101980320.

The previous prime is 103287817. The next prime is 103287841. The reversal of 103287839 is 938782301.

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 103287839 - 2²⁴ = 86510623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103287796 and 103287805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103287139) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 653642 + ... + 653799.

It is an arithmetic number, because the mean of its divisors is an integer number (26148840).

Almost surely, 2^103287839 is an apocalyptic number.

103287839 is a deficient number, since it is larger than the sum of its proper divisors (1307521).

103287839 is an equidigital number, since it uses as much as digits as its factorization.

103287839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307520.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 103287839 is about 10163.0624813587. The cubic root of 103287839 is about 469.1910620987.

The spelling of 103287839 in words is "one hundred three million, two hundred eighty-seven thousand, eight hundred thirty-nine".