72568493 has 4 divisors (see below), whose sum is σ = 72629340. Its totient is φ = 72507648.

The previous prime is 72568481. The next prime is 72568499. The reversal of 72568493 is 39486527.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31326409 + 41242084 = 5597^2 + 6422^2 .

It is a cyclic number.

It is not a de Polignac number, because 72568493 - 2¹⁶ = 72502957 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 (72568499) 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, 28598 + ... + 31031.

It is an arithmetic number, because the mean of its divisors is an integer number (18157335).

Almost surely, 2^72568493 is an apocalyptic number.

It is an amenable number.

72568493 is a deficient number, since it is larger than the sum of its proper divisors (60847).

72568493 is a wasteful number, since it uses less digits than its factorization.

72568493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60846.

The product of its digits is 362880, while the sum is 44.

The square root of 72568493 is about 8518.7142809229. The cubic root of 72568493 is about 417.1088149835.

The spelling of 72568493 in words is "seventy-two million, five hundred sixty-eight thousand, four hundred ninety-three".