8723913 has 16 divisors (see below), whose sum is σ = 12773376. Its totient is φ = 5252240.

The previous prime is 8723909. The next prime is 8723921. The reversal of 8723913 is 3193278.

It is a cyclic number.

It is not a de Polignac number, because 8723913 - 2² = 8723909 is a prime.

It is a super-2 number, since 2×8723913² = 152213316063138, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (8723903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4720 + ... + 6302.

It is an arithmetic number, because the mean of its divisors is an integer number (798336).

Almost surely, 2^8723913 is an apocalyptic number.

It is an amenable number.

8723913 is a deficient number, since it is larger than the sum of its proper divisors (4049463).

8723913 is a wasteful number, since it uses less digits than its factorization.

8723913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1764.

The product of its digits is 9072, while the sum is 33.

The square root of 8723913 is about 2953.6270922376. The cubic root of 8723913 is about 205.8592764356.

The spelling of 8723913 in words is "eight million, seven hundred twenty-three thousand, nine hundred thirteen".