72253339 has 2 divisors, whose sum is σ = 72253340. Its totient is φ = 72253338.

The previous prime is 72253319. The next prime is 72253351. The reversal of 72253339 is 93335227.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72253339 - 2⁷ = 72253211 is a prime.

It is not a weakly prime, because it can be changed into another prime (72253309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36126669 + 36126670.

It is an arithmetic number, because the mean of its divisors is an integer number (36126670).

Almost surely, 2^72253339 is an apocalyptic number.

72253339 is a deficient number, since it is larger than the sum of its proper divisors (1).

72253339 is an equidigital number, since it uses as much as digits as its factorization.

72253339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34020, while the sum is 34.

The square root of 72253339 is about 8500.1964094955. The cubic root of 72253339 is about 416.5041252587.

The spelling of 72253339 in words is "seventy-two million, two hundred fifty-three thousand, three hundred thirty-nine".