72304535 has 8 divisors (see below), whose sum is σ = 86822496. Its totient is φ = 57805600.

The previous prime is 72304523. The next prime is 72304567. The reversal of 72304535 is 53540327.

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

It is a de Polignac number, because none of the positive numbers 2^k-72304535 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72304498 and 72304507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5702 + ... + 13308.

It is an arithmetic number, because the mean of its divisors is an integer number (10852812).

Almost surely, 2^72304535 is an apocalyptic number.

72304535 is a deficient number, since it is larger than the sum of its proper divisors (14517961).

72304535 is a wasteful number, since it uses less digits than its factorization.

72304535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9513.

The product of its (nonzero) digits is 12600, while the sum is 29.

The square root of 72304535 is about 8503.2073360586. The cubic root of 72304535 is about 416.6024750889.

The spelling of 72304535 in words is "seventy-two million, three hundred four thousand, five hundred thirty-five".