72914593 has 4 divisors (see below), whose sum is σ = 72942660. Its totient is φ = 72886528.

The previous prime is 72914579. The next prime is 72914599. The reversal of 72914593 is 39541927.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39541927 = 811 ⋅48757.

It can be written as a sum of positive squares in 2 ways, for example, as 12588304 + 60326289 = 3548^2 + 7767^2 .

It is a cyclic number.

It is not a de Polignac number, because 72914593 - 2⁵ = 72914561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72914599) 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 3 ways as a sum of consecutive naturals, for example, 9688 + ... + 15481.

It is an arithmetic number, because the mean of its divisors is an integer number (18235665).

Almost surely, 2^72914593 is an apocalyptic number.

It is an amenable number.

72914593 is a deficient number, since it is larger than the sum of its proper divisors (28067).

72914593 is a wasteful number, since it uses less digits than its factorization.

72914593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28066.

The product of its digits is 68040, while the sum is 40.

The square root of 72914593 is about 8539.0042159493. The cubic root of 72914593 is about 417.7708675300.

The spelling of 72914593 in words is "seventy-two million, nine hundred fourteen thousand, five hundred ninety-three".