72296393 has 8 divisors (see below), whose sum is σ = 82437768. Its totient is φ = 62809344.

The previous prime is 72296381. The next prime is 72296437. The reversal of 72296393 is 39369227.

It can be written as a sum of positive squares in 4 ways, for example, as 182329 + 72114064 = 427^2 + 8492^2 .

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

It is not a de Polignac number, because 72296393 - 2¹⁰ = 72295369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72296393.

It is not an unprimeable number, because it can be changed into a prime (72296303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163346 + ... + 163787.

It is an arithmetic number, because the mean of its divisors is an integer number (10304721).

Almost surely, 2^72296393 is an apocalyptic number.

It is an amenable number.

72296393 is a deficient number, since it is larger than the sum of its proper divisors (10141375).

72296393 is a wasteful number, since it uses less digits than its factorization.

72296393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327163.

The product of its digits is 122472, while the sum is 41.

The square root of 72296393 is about 8502.7285620558. The cubic root of 72296393 is about 416.5868370441.

The spelling of 72296393 in words is "seventy-two million, two hundred ninety-six thousand, three hundred ninety-three".