72896233 has 2 divisors, whose sum is σ = 72896234. Its totient is φ = 72896232.

The previous prime is 72896231. The next prime is 72896249. The reversal of 72896233 is 33269827.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57942544 + 14953689 = 7612^2 + 3867^2 .

It is a cyclic number.

It is not a de Polignac number, because 72896233 - 2¹ = 72896231 is a prime.

Together with 72896231, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (72896231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36448116 + 36448117.

It is an arithmetic number, because the mean of its divisors is an integer number (36448117).

Almost surely, 2^72896233 is an apocalyptic number.

It is an amenable number.

72896233 is a deficient number, since it is larger than the sum of its proper divisors (1).

72896233 is an equidigital number, since it uses as much as digits as its factorization.

72896233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 40.

The square root of 72896233 is about 8537.9290814576. The cubic root of 72896233 is about 417.7357994835.

The spelling of 72896233 in words is "seventy-two million, eight hundred ninety-six thousand, two hundred thirty-three".