72653351 has 2 divisors, whose sum is σ = 72653352. Its totient is φ = 72653350.

The previous prime is 72653341. The next prime is 72653387. The reversal of 72653351 is 15335627.

It is a weak prime.

It is an emirp because it is prime and its reverse (15335627) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72653351 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72653341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36326675 + 36326676.

It is an arithmetic number, because the mean of its divisors is an integer number (36326676).

Almost surely, 2^72653351 is an apocalyptic number.

72653351 is a deficient number, since it is larger than the sum of its proper divisors (1).

72653351 is an equidigital number, since it uses as much as digits as its factorization.

72653351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18900, while the sum is 32.

The square root of 72653351 is about 8523.6935069253. The cubic root of 72653351 is about 417.2713337797.

Adding to 72653351 its reverse (15335627), we get a palindrome (87988978).

The spelling of 72653351 in words is "seventy-two million, six hundred fifty-three thousand, three hundred fifty-one".