72528683 has 4 divisors (see below), whose sum is σ = 75682128. Its totient is φ = 69375240.

The previous prime is 72528679. The next prime is 72528697. The reversal of 72528683 is 38682527.

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

It is a cyclic number.

It is not a de Polignac number, because 72528683 - 2² = 72528679 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72528683.

It is not an unprimeable number, because it can be changed into a prime (72528653) 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 3 ways as a sum of consecutive naturals, for example, 1576688 + ... + 1576733.

It is an arithmetic number, because the mean of its divisors is an integer number (18920532).

Almost surely, 2^72528683 is an apocalyptic number.

72528683 is a deficient number, since it is larger than the sum of its proper divisors (3153445).

72528683 is a wasteful number, since it uses less digits than its factorization.

72528683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3153444.

The product of its digits is 161280, while the sum is 41.

The square root of 72528683 is about 8516.3773401605. The cubic root of 72528683 is about 417.0325277933.

The spelling of 72528683 in words is "seventy-two million, five hundred twenty-eight thousand, six hundred eighty-three".