4723987 has 2 divisors, whose sum is σ = 4723988. Its totient is φ = 4723986.

The previous prime is 4723981. The next prime is 4724047. The reversal of 4723987 is 7893274.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4723987 is a prime.

It is not a weakly prime, because it can be changed into another prime (4723981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2361993 + 2361994.

It is an arithmetic number, because the mean of its divisors is an integer number (2361994).

Almost surely, 2^4723987 is an apocalyptic number.

4723987 is a deficient number, since it is larger than the sum of its proper divisors (1).

4723987 is an equidigital number, since it uses as much as digits as its factorization.

4723987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 40.

The square root of 4723987 is about 2173.4734873009. The cubic root of 4723987 is about 167.7913485832.

The spelling of 4723987 in words is "four million, seven hundred twenty-three thousand, nine hundred eighty-seven".