73974503 has 4 divisors (see below), whose sum is σ = 74061480. Its totient is φ = 73887528.

The previous prime is 73974457. The next prime is 73974539. The reversal of 73974503 is 30547937.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 73974503 - 2²² = 69780199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73374503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42200 + ... + 43917.

It is an arithmetic number, because the mean of its divisors is an integer number (18515370).

Almost surely, 2^73974503 is an apocalyptic number.

73974503 is a deficient number, since it is larger than the sum of its proper divisors (86977).

73974503 is an equidigital number, since it uses as much as digits as its factorization.

73974503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86976.

The product of its (nonzero) digits is 79380, while the sum is 38.

The square root of 73974503 is about 8600.8431563423. The cubic root of 73974503 is about 419.7854213803.

The spelling of 73974503 in words is "seventy-three million, nine hundred seventy-four thousand, five hundred three".