8723987 has 2 divisors, whose sum is σ = 8723988. Its totient is φ = 8723986.

The previous prime is 8723977. The next prime is 8723993. The reversal of 8723987 is 7893278.

It is a happy number.

8723987 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8723987 - 2⁸ = 8723731 is a prime.

It is a super-2 number, since 2×8723987² = 152215898352338, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8723947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4361993 + 4361994.

It is an arithmetic number, because the mean of its divisors is an integer number (4361994).

Almost surely, 2^8723987 is an apocalyptic number.

8723987 is a deficient number, since it is larger than the sum of its proper divisors (1).

8723987 is an equidigital number, since it uses as much as digits as its factorization.

8723987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 44.

The square root of 8723987 is about 2953.6396191817. The cubic root of 8723987 is about 205.8598584964.

The spelling of 8723987 in words is "eight million, seven hundred twenty-three thousand, nine hundred eighty-seven".