74717 has 2 divisors, whose sum is σ = 74718. Its totient is φ = 74716.

The previous prime is 74713. The next prime is 74719. The reversal of 74717 is 71747.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64516 + 10201 = 254^2 + 101^2 .

It is a cyclic number.

It is not a de Polignac number, because 74717 - 2² = 74713 is a prime.

Together with 74719, it forms a pair of twin primes.

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 (74713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37358 + 37359.

It is an arithmetic number, because the mean of its divisors is an integer number (37359).

2⁷⁴⁷¹⁷ is an apocalyptic number.

It is an amenable number.

74717 is a deficient number, since it is larger than the sum of its proper divisors (1).

74717 is an equidigital number, since it uses as much as digits as its factorization.

74717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1372, while the sum is 26.

The square root of 74717 is about 273.3441054788. The cubic root of 74717 is about 42.1185238660.

Subtracting from 74717 its sum of digits (26), we obtain a triangular number (74691 = T₃₈₆).

The spelling of 74717 in words is "seventy-four thousand, seven hundred seventeen", and thus it is an iban number.