72500489 has 4 divisors (see below), whose sum is σ = 72535056. Its totient is φ = 72465924.

The previous prime is 72500473. The next prime is 72500521. The reversal of 72500489 is 98400527.

It is a happy number.

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 72500489 - 2⁴ = 72500473 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72500429) 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, 13919 + ... + 18404.

It is an arithmetic number, because the mean of its divisors is an integer number (18133764).

Almost surely, 2^72500489 is an apocalyptic number.

It is an amenable number.

72500489 is a deficient number, since it is larger than the sum of its proper divisors (34567).

72500489 is a wasteful number, since it uses less digits than its factorization.

72500489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34566.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 72500489 is about 8514.7218979835. The cubic root of 72500489 is about 416.9784832486.

The spelling of 72500489 in words is "seventy-two million, five hundred thousand, four hundred eighty-nine".