72532689 has 4 divisors (see below), whose sum is σ = 96710256. Its totient is φ = 48355124.

The previous prime is 72532687. The next prime is 72532711. The reversal of 72532689 is 98623527.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72532689 - 2¹ = 72532687 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72532689.

It is not an unprimeable number, because it can be changed into a prime (72532687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12088779 + ... + 12088784.

It is an arithmetic number, because the mean of its divisors is an integer number (24177564).

Almost surely, 2^72532689 is an apocalyptic number.

It is an amenable number.

72532689 is a deficient number, since it is larger than the sum of its proper divisors (24177567).

72532689 is a wasteful number, since it uses less digits than its factorization.

72532689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24177566.

The product of its digits is 181440, while the sum is 42.

The square root of 72532689 is about 8516.6125308129. The cubic root of 72532689 is about 417.0402056824.

The spelling of 72532689 in words is "seventy-two million, five hundred thirty-two thousand, six hundred eighty-nine".