73004501 has 4 divisors (see below), whose sum is σ = 73068972. Its totient is φ = 72940032.

The previous prime is 73004483. The next prime is 73004509. The reversal of 73004501 is 10540037.

It is a happy number.

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 28462225 + 44542276 = 5335^2 + 6674^2 .

It is a cyclic number.

It is not a de Polignac number, because 73004501 - 2¹⁴ = 72988117 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 (73004509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30506 + ... + 32811.

It is an arithmetic number, because the mean of its divisors is an integer number (18267243).

Almost surely, 2^73004501 is an apocalyptic number.

It is an amenable number.

73004501 is a deficient number, since it is larger than the sum of its proper divisors (64471).

73004501 is a wasteful number, since it uses less digits than its factorization.

73004501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64470.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 73004501 is about 8544.2671423593. The cubic root of 73004501 is about 417.9425090532.

Adding to 73004501 its reverse (10540037), we get a palindrome (83544538).

The spelling of 73004501 in words is "seventy-three million, four thousand, five hundred one".