72753589 has 4 divisors (see below), whose sum is σ = 73503724. Its totient is φ = 72003456.

The previous prime is 72753563. The next prime is 72753599. The reversal of 72753589 is 98535727.

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

It can be written as a sum of positive squares in 2 ways, for example, as 60186564 + 12567025 = 7758^2 + 3545^2 .

It is a cyclic number.

It is not a de Polignac number, because 72753589 - 2²³ = 64364981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72753599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374922 + ... + 375115.

It is an arithmetic number, because the mean of its divisors is an integer number (18375931).

Almost surely, 2^72753589 is an apocalyptic number.

It is an amenable number.

72753589 is a deficient number, since it is larger than the sum of its proper divisors (750135).

72753589 is an equidigital number, since it uses as much as digits as its factorization.

72753589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750134.

The product of its digits is 529200, while the sum is 46.

The square root of 72753589 is about 8529.5714429272. The cubic root of 72753589 is about 417.4631451804.

The spelling of 72753589 in words is "seventy-two million, seven hundred fifty-three thousand, five hundred eighty-nine".