72354589 has 4 divisors (see below), whose sum is σ = 74688640. Its totient is φ = 70020540.

The previous prime is 72354571. The next prime is 72354613. The reversal of 72354589 is 98545327.

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 72354589 - 2¹³ = 72346397 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 (72354539) 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, 1166979 + ... + 1167040.

It is an arithmetic number, because the mean of its divisors is an integer number (18672160).

Almost surely, 2^72354589 is an apocalyptic number.

It is an amenable number.

72354589 is a deficient number, since it is larger than the sum of its proper divisors (2334051).

72354589 is a wasteful number, since it uses less digits than its factorization.

72354589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2334050.

The product of its digits is 302400, while the sum is 43.

The square root of 72354589 is about 8506.1500692146. The cubic root of 72354589 is about 416.6985862125.

The spelling of 72354589 in words is "seventy-two million, three hundred fifty-four thousand, five hundred eighty-nine".