3123739 has 4 divisors (see below), whose sum is σ = 3163360. Its totient is φ = 3084120.

The previous prime is 3123727. The next prime is 3123751. The reversal of 3123739 is 9373213.

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

It is an interprime number because it is at equal distance from previous prime (3123727) and next prime (3123751).

It is a cyclic number.

It is not a de Polignac number, because 3123739 - 2⁷ = 3123611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3123709) 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, 19692 + ... + 19849.

It is an arithmetic number, because the mean of its divisors is an integer number (790840).

Almost surely, 2^3123739 is an apocalyptic number.

3123739 is a deficient number, since it is larger than the sum of its proper divisors (39621).

3123739 is an equidigital number, since it uses as much as digits as its factorization.

3123739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39620.

The product of its digits is 3402, while the sum is 28.

The square root of 3123739 is about 1767.4102523183. The cubic root of 3123739 is about 146.1812192710.

The spelling of 3123739 in words is "three million, one hundred twenty-three thousand, seven hundred thirty-nine".