8240723 has 4 divisors (see below), whose sum is σ = 8252448. Its totient is φ = 8229000.

The previous prime is 8240719. The next prime is 8240731. The reversal of 8240723 is 3270428.

8240723 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 8240723 - 2² = 8240719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8240692 and 8240701.

It is not an unprimeable number, because it can be changed into a prime (8240753) 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, 4736 + ... + 6237.

It is an arithmetic number, because the mean of its divisors is an integer number (2063112).

Almost surely, 2^8240723 is an apocalyptic number.

8240723 is a deficient number, since it is larger than the sum of its proper divisors (11725).

8240723 is a wasteful number, since it uses less digits than its factorization.

8240723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11724.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 8240723 is about 2870.6659506115. The cubic root of 8240723 is about 201.9862340715.

The spelling of 8240723 in words is "eight million, two hundred forty thousand, seven hundred twenty-three".