72286399 has 2 divisors, whose sum is σ = 72286400. Its totient is φ = 72286398.

The previous prime is 72286391. The next prime is 72286421. The reversal of 72286399 is 99368227.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72286399 - 2³ = 72286391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72286391) 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, 36143199 + 36143200.

It is an arithmetic number, because the mean of its divisors is an integer number (36143200).

Almost surely, 2^72286399 is an apocalyptic number.

72286399 is a deficient number, since it is larger than the sum of its proper divisors (1).

72286399 is an equidigital number, since it uses as much as digits as its factorization.

72286399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 46.

The square root of 72286399 is about 8502.1408480453. The cubic root of 72286399 is about 416.5676403247.

The spelling of 72286399 in words is "seventy-two million, two hundred eighty-six thousand, three hundred ninety-nine".