8723457 has 12 divisors (see below), whose sum is σ = 13067600. Its totient is φ = 5815476.

The previous prime is 8723441. The next prime is 8723459. The reversal of 8723457 is 7543278.

It is not a de Polignac number, because 8723457 - 2⁴ = 8723441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8723459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17707 + ... + 18192.

Almost surely, 2^8723457 is an apocalyptic number.

It is an amenable number.

8723457 is a deficient number, since it is larger than the sum of its proper divisors (4344143).

8723457 is an equidigital number, since it uses as much as digits as its factorization.

8723457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35914 (or 35902 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 8723457 is about 2953.5498980041. The cubic root of 8723457 is about 205.8556896099.

It can be divided in two parts, 8723 and 457, that added together give a triangular number (9180 = T₁₃₅).

The spelling of 8723457 in words is "eight million, seven hundred twenty-three thousand, four hundred fifty-seven".