74623 has 2 divisors, whose sum is σ = 74624. Its totient is φ = 74622.

The previous prime is 74611. The next prime is 74653. The reversal of 74623 is 32647.

It is a weak prime.

It is an emirp because it is prime and its reverse (32647) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74623 - 2¹³ = 66431 is a prime.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 74594 and 74603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74653) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37311 + 37312.

It is an arithmetic number, because the mean of its divisors is an integer number (37312).

2⁷⁴⁶²³ is an apocalyptic number.

74623 is a deficient number, since it is larger than the sum of its proper divisors (1).

74623 is an equidigital number, since it uses as much as digits as its factorization.

74623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 22.

The square root of 74623 is about 273.1721069216. The cubic root of 74623 is about 42.1008536227.

The spelling of 74623 in words is "seventy-four thousand, six hundred twenty-three".