103739 has 4 divisors (see below), whose sum is σ = 104424. Its totient is φ = 103056.

The previous prime is 103723. The next prime is 103769. The reversal of 103739 is 937301.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 937301 = 41 ⋅22861.

It is a cyclic number.

It is not a de Polignac number, because 103739 - 2⁴ = 103723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2 + ... + 455.

It is an arithmetic number, because the mean of its divisors is an integer number (26106).

2¹⁰³⁷³⁹ is an apocalyptic number.

103739 is a deficient number, since it is larger than the sum of its proper divisors (685).

103739 is an equidigital number, since it uses as much as digits as its factorization.

103739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684.

The product of its (nonzero) digits is 567, while the sum is 23.

The square root of 103739 is about 322.0853924039. The cubic root of 103739 is about 46.9873211613.

The spelling of 103739 in words is "one hundred three thousand, seven hundred thirty-nine".