72528878 has 8 divisors (see below), whose sum is σ = 110577000. Its totient is φ = 35669880.

The previous prime is 72528839. The next prime is 72528901. The reversal of 72528878 is 87882527.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297128 + ... + 297371.

It is an arithmetic number, because the mean of its divisors is an integer number (13822125).

Almost surely, 2^72528878 is an apocalyptic number.

72528878 is a deficient number, since it is larger than the sum of its proper divisors (38048122).

72528878 is a wasteful number, since it uses less digits than its factorization.

72528878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594562.

The product of its digits is 501760, while the sum is 47.

The square root of 72528878 is about 8516.3887886827. The cubic root of 72528878 is about 417.0329015363.

The spelling of 72528878 in words is "seventy-two million, five hundred twenty-eight thousand, eight hundred seventy-eight".