6923739 has 4 divisors (see below), whose sum is σ = 9231656. Its totient is φ = 4615824.

The previous prime is 6923737. The next prime is 6923747. The reversal of 6923739 is 9373296.

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

It is not a de Polignac number, because 6923739 - 2¹ = 6923737 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6923697 and 6923706.

It is not an unprimeable number, because it can be changed into a prime (6923737) 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, 1153954 + ... + 1153959.

It is an arithmetic number, because the mean of its divisors is an integer number (2307914).

Almost surely, 2^6923739 is an apocalyptic number.

6923739 is a deficient number, since it is larger than the sum of its proper divisors (2307917).

6923739 is a wasteful number, since it uses less digits than its factorization.

6923739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307916.

The product of its digits is 61236, while the sum is 39.

The square root of 6923739 is about 2631.2998688861. The cubic root of 6923739 is about 190.5959037917.

The spelling of 6923739 in words is "six million, nine hundred twenty-three thousand, seven hundred thirty-nine".