4945987 has 2 divisors, whose sum is σ = 4945988. Its totient is φ = 4945986.

The previous prime is 4945981. The next prime is 4946003. The reversal of 4945987 is 7895494.

4945987 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4945987 - 2⁷ = 4945859 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (4945981) 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 as a sum of consecutive naturals, namely, 2472993 + 2472994.

It is an arithmetic number, because the mean of its divisors is an integer number (2472994).

Almost surely, 2^4945987 is an apocalyptic number.

4945987 is a deficient number, since it is larger than the sum of its proper divisors (1).

4945987 is an equidigital number, since it uses as much as digits as its factorization.

4945987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 46.

The square root of 4945987 is about 2223.9575085869. The cubic root of 4945987 is about 170.3796245300.

The spelling of 4945987 in words is "four million, nine hundred forty-five thousand, nine hundred eighty-seven".