72460789 has 2 divisors, whose sum is σ = 72460790. Its totient is φ = 72460788.

The previous prime is 72460781. The next prime is 72460831. The reversal of 72460789 is 98706427.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72080100 + 380689 = 8490^2 + 617^2 .

It is an emirp because it is prime and its reverse (98706427) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72460789 - 2³ = 72460781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72460781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36230394 + 36230395.

It is an arithmetic number, because the mean of its divisors is an integer number (36230395).

Almost surely, 2^72460789 is an apocalyptic number.

It is an amenable number.

72460789 is a deficient number, since it is larger than the sum of its proper divisors (1).

72460789 is an equidigital number, since it uses as much as digits as its factorization.

72460789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 72460789 is about 8512.3903223478. The cubic root of 72460789 is about 416.9023593102.

The spelling of 72460789 in words is "seventy-two million, four hundred sixty thousand, seven hundred eighty-nine".