8723613 has 4 divisors (see below), whose sum is σ = 11631488. Its totient is φ = 5815740.

The previous prime is 8723609. The next prime is 8723639. The reversal of 8723613 is 3163278.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8723613 - 2² = 8723609 is a prime.

It is a super-2 number, since 2×8723613² = 152202847547538, which contains 22 as substring.

It is a Duffinian number.

8723613 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8723653) 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 3 ways as a sum of consecutive naturals, for example, 1453933 + ... + 1453938.

It is an arithmetic number, because the mean of its divisors is an integer number (2907872).

Almost surely, 2^8723613 is an apocalyptic number.

It is an amenable number.

8723613 is a deficient number, since it is larger than the sum of its proper divisors (2907875).

8723613 is a wasteful number, since it uses less digits than its factorization.

8723613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2907874.

The product of its digits is 6048, while the sum is 30.

The square root of 8723613 is about 2953.5763067847. The cubic root of 8723613 is about 205.8569166959.

The spelling of 8723613 in words is "eight million, seven hundred twenty-three thousand, six hundred thirteen".