73542473 has 4 divisors (see below), whose sum is σ = 73967748. Its totient is φ = 73117200.

The previous prime is 73542467. The next prime is 73542487. The reversal of 73542473 is 37424537.

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

It can be written as a sum of positive squares in 2 ways, for example, as 69689104 + 3853369 = 8348^2 + 1963^2 .

It is a cyclic number.

It is not a de Polignac number, because 73542473 - 2¹⁰ = 73541449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73542433) 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 in 3 ways as a sum of consecutive naturals, for example, 212378 + ... + 212723.

It is an arithmetic number, because the mean of its divisors is an integer number (18491937).

Almost surely, 2^73542473 is an apocalyptic number.

It is an amenable number.

73542473 is a deficient number, since it is larger than the sum of its proper divisors (425275).

73542473 is a wasteful number, since it uses less digits than its factorization.

73542473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425274.

The product of its digits is 70560, while the sum is 35.

The square root of 73542473 is about 8575.6908176543. The cubic root of 73542473 is about 418.9666072351.

The spelling of 73542473 in words is "seventy-three million, five hundred forty-two thousand, four hundred seventy-three".