74687 has 2 divisors, whose sum is σ = 74688. Its totient is φ = 74686.

The previous prime is 74653. The next prime is 74699. The reversal of 74687 is 78647.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74687 - 2⁶ = 74623 is a prime.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37343 + 37344.

It is an arithmetic number, because the mean of its divisors is an integer number (37344).

2⁷⁴⁶⁸⁷ is an apocalyptic number.

74687 is a deficient number, since it is larger than the sum of its proper divisors (1).

74687 is an equidigital number, since it uses as much as digits as its factorization.

74687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9408, while the sum is 32.

The square root of 74687 is about 273.2892240832. The cubic root of 74687 is about 42.1128860376.

The spelling of 74687 in words is "seventy-four thousand, six hundred eighty-seven".