72603915 has 8 divisors (see below), whose sum is σ = 116166288. Its totient is φ = 38722080.

The previous prime is 72603911. The next prime is 72603941. The reversal of 72603915 is 51930627.

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

It is not a de Polignac number, because 72603915 - 2² = 72603911 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (72603911) 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 7 ways as a sum of consecutive naturals, for example, 2420116 + ... + 2420145.

It is an arithmetic number, because the mean of its divisors is an integer number (14520786).

Almost surely, 2^72603915 is an apocalyptic number.

72603915 is a deficient number, since it is larger than the sum of its proper divisors (43562373).

72603915 is a wasteful number, since it uses less digits than its factorization.

72603915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4840269.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 72603915 is about 8520.7930968895. The cubic root of 72603915 is about 417.1766700747.

It can be divided in two parts, 7260 and 3915, that added together give a triangular number (11175 = T₁₄₉).

The spelling of 72603915 in words is "seventy-two million, six hundred three thousand, nine hundred fifteen".