8723399 has 2 divisors, whose sum is σ = 8723400. Its totient is φ = 8723398.

The previous prime is 8723387. The next prime is 8723419. The reversal of 8723399 is 9933278.

8723399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8723399 - 2¹² = 8719303 is a prime.

It is a super-2 number, since 2×8723399² = 152195380226402, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8723359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4361699 + 4361700.

It is an arithmetic number, because the mean of its divisors is an integer number (4361700).

Almost surely, 2^8723399 is an apocalyptic number.

8723399 is a deficient number, since it is larger than the sum of its proper divisors (1).

8723399 is an equidigital number, since it uses as much as digits as its factorization.

8723399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 41.

The square root of 8723399 is about 2953.5400792947. The cubic root of 8723399 is about 205.8552333819.

The spelling of 8723399 in words is "eight million, seven hundred twenty-three thousand, three hundred ninety-nine".