74023 has 4 divisors (see below), whose sum is σ = 75040. Its totient is φ = 73008.

The previous prime is 74021. The next prime is 74027. The reversal of 74023 is 32047.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32047 = 73 ⋅439.

It is a 4-Lehmer number, since φ(74023) divides (74023-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 74023 - 2¹ = 74021 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 73988 and 74006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74021) 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 in 3 ways as a sum of consecutive naturals, for example, 390 + ... + 547.

It is an arithmetic number, because the mean of its divisors is an integer number (18760).

2⁷⁴⁰²³ is an apocalyptic number.

74023 is a deficient number, since it is larger than the sum of its proper divisors (1017).

74023 is an equidigital number, since it uses as much as digits as its factorization.

74023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016.

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 74023 is about 272.0716817311. The cubic root of 74023 is about 41.9877137154.

It can be divided in two parts, 740 and 23, that multiplied together give a triangular number (17020 = T₁₈₄).

The spelling of 74023 in words is "seventy-four thousand, twenty-three", and thus it is an iban number.