8923987 has 2 divisors, whose sum is σ = 8923988. Its totient is φ = 8923986.

The previous prime is 8923969. The next prime is 8923991. The reversal of 8923987 is 7893298.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8923987 is a prime.

It is not a weakly prime, because it can be changed into another prime (8923087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4461993 + 4461994.

It is an arithmetic number, because the mean of its divisors is an integer number (4461994).

Almost surely, 2^8923987 is an apocalyptic number.

8923987 is a deficient number, since it is larger than the sum of its proper divisors (1).

8923987 is an equidigital number, since it uses as much as digits as its factorization.

8923987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 46.

The square root of 8923987 is about 2987.3043032139. The cubic root of 8923987 is about 207.4211206451.

The spelling of 8923987 in words is "eight million, nine hundred twenty-three thousand, nine hundred eighty-seven".