74887 has 2 divisors, whose sum is σ = 74888. Its totient is φ = 74886.

The previous prime is 74873. The next prime is 74891. The reversal of 74887 is 78847.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74887 - 2⁷ = 74759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37443 + 37444.

It is an arithmetic number, because the mean of its divisors is an integer number (37444).

2⁷⁴⁸⁸⁷ is an apocalyptic number.

74887 is a deficient number, since it is larger than the sum of its proper divisors (1).

74887 is an equidigital number, since it uses as much as digits as its factorization.

74887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12544, while the sum is 34.

The square root of 74887 is about 273.6548921543. The cubic root of 74887 is about 42.1504430880.

It can be divided in two parts, 74 and 887, that added together give a square (961 = 31²).

The spelling of 74887 in words is "seventy-four thousand, eight hundred eighty-seven".