72796193 has 4 divisors (see below), whose sum is σ = 77078340. Its totient is φ = 68514048.

The previous prime is 72796187. The next prime is 72796211. The reversal of 72796193 is 39169727.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39169727 = 223 ⋅175649.

It can be written as a sum of positive squares in 2 ways, for example, as 33269824 + 39526369 = 5768^2 + 6287^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72796193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72796133) 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, 2141048 + ... + 2141081.

It is an arithmetic number, because the mean of its divisors is an integer number (19269585).

Almost surely, 2^72796193 is an apocalyptic number.

It is an amenable number.

72796193 is a deficient number, since it is larger than the sum of its proper divisors (4282147).

72796193 is a wasteful number, since it uses less digits than its factorization.

72796193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4282146.

The product of its digits is 142884, while the sum is 44.

The square root of 72796193 is about 8532.0685065229. The cubic root of 72796193 is about 417.5446171257.

The spelling of 72796193 in words is "seventy-two million, seven hundred ninety-six thousand, one hundred ninety-three".