4855987 has 2 divisors, whose sum is σ = 4855988. Its totient is φ = 4855986.

The previous prime is 4855973. The next prime is 4856003. The reversal of 4855987 is 7895584.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4855987 - 2¹⁵ = 4823219 is a prime.

It is a Chen prime.

4855987 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (4855957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2427993 + 2427994.

It is an arithmetic number, because the mean of its divisors is an integer number (2427994).

Almost surely, 2^4855987 is an apocalyptic number.

4855987 is a deficient number, since it is larger than the sum of its proper divisors (1).

4855987 is an equidigital number, since it uses as much as digits as its factorization.

4855987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 403200, while the sum is 46.

The square root of 4855987 is about 2203.6304136583. The cubic root of 4855987 is about 169.3398504150.

It can be divided in two parts, 485598 and 7, that added together give a triangular number (485605 = T₉₈₅).

The spelling of 4855987 in words is "four million, eight hundred fifty-five thousand, nine hundred eighty-seven".