74503 has 8 divisors (see below), whose sum is σ = 87696. Its totient is φ = 62400.

The previous prime is 74489. The next prime is 74507. The reversal of 74503 is 30547.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74503 - 2⁵ = 74471 is a prime.

It is a d-powerful number, because it can be written as 7⁴ + 4⁸ + 5 + 0 + 3⁸ .

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

74503 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74507) 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 7 ways as a sum of consecutive naturals, for example, 118 + ... + 403.

It is an arithmetic number, because the mean of its divisors is an integer number (10962).

2⁷⁴⁵⁰³ is an apocalyptic number.

74503 is a deficient number, since it is larger than the sum of its proper divisors (13193).

74503 is a wasteful number, since it uses less digits than its factorization.

74503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545.

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 74503 is about 272.9523767986. The cubic root of 74503 is about 42.0782742886.

Subtracting from 74503 its reverse (30547), we obtain a triangular number (43956 = T₂₉₆).

The spelling of 74503 in words is "seventy-four thousand, five hundred three".