72458791 has 8 divisors (see below), whose sum is σ = 76373280. Its totient is φ = 68638752.

The previous prime is 72458783. The next prime is 72458803. The reversal of 72458791 is 19785427.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72458791 - 2³ = 72458783 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 (72458591) 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 7 ways as a sum of consecutive naturals, for example, 22035 + ... + 25108.

It is an arithmetic number, because the mean of its divisors is an integer number (9546660).

Almost surely, 2^72458791 is an apocalyptic number.

72458791 is a deficient number, since it is larger than the sum of its proper divisors (3914489).

72458791 is a wasteful number, since it uses less digits than its factorization.

72458791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47225.

The product of its digits is 141120, while the sum is 43.

The square root of 72458791 is about 8512.2729631985. The cubic root of 72458791 is about 416.8985274512.

The spelling of 72458791 in words is "seventy-two million, four hundred fifty-eight thousand, seven hundred ninety-one".