72108847 has 2 divisors, whose sum is σ = 72108848. Its totient is φ = 72108846.

The previous prime is 72108833. The next prime is 72108851. The reversal of 72108847 is 74880127.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72108847 - 2⁷ = 72108719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72108347) 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, 36054423 + 36054424.

It is an arithmetic number, because the mean of its divisors is an integer number (36054424).

Almost surely, 2^72108847 is an apocalyptic number.

72108847 is a deficient number, since it is larger than the sum of its proper divisors (1).

72108847 is an equidigital number, since it uses as much as digits as its factorization.

72108847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 72108847 is about 8491.6928229888. The cubic root of 72108847 is about 416.2262987644.

The spelling of 72108847 in words is "seventy-two million, one hundred eight thousand, eight hundred forty-seven".