74827 has 2 divisors, whose sum is σ = 74828. Its totient is φ = 74826.

The previous prime is 74821. The next prime is 74831. The reversal of 74827 is 72847.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74827 - 2⁷ = 74699 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 74795 and 74804.

It is not a weakly prime, because it can be changed into another prime (74821) 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, 37413 + 37414.

It is an arithmetic number, because the mean of its divisors is an integer number (37414).

2⁷⁴⁸²⁷ is an apocalyptic number.

74827 is a deficient number, since it is larger than the sum of its proper divisors (1).

74827 is an equidigital number, since it uses as much as digits as its factorization.

74827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3136, while the sum is 28.

The square root of 74827 is about 273.5452430586. The cubic root of 74827 is about 42.1391830014.

The spelling of 74827 in words is "seventy-four thousand, eight hundred twenty-seven".