72289351 has 2 divisors, whose sum is σ = 72289352. Its totient is φ = 72289350.

The previous prime is 72289339. The next prime is 72289361. The reversal of 72289351 is 15398227.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72289351 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72289351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72289361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36144675 + 36144676.

It is an arithmetic number, because the mean of its divisors is an integer number (36144676).

Almost surely, 2^72289351 is an apocalyptic number.

72289351 is a deficient number, since it is larger than the sum of its proper divisors (1).

72289351 is an equidigital number, since it uses as much as digits as its factorization.

72289351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 37.

The square root of 72289351 is about 8502.3144496072. The cubic root of 72289351 is about 416.5733107826.

The spelling of 72289351 in words is "seventy-two million, two hundred eighty-nine thousand, three hundred fifty-one".