72647027 has 2 divisors, whose sum is σ = 72647028. Its totient is φ = 72647026.

The previous prime is 72647023. The next prime is 72647063. The reversal of 72647027 is 72074627.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72647027 - 2² = 72647023 is a prime.

It is not a weakly prime, because it can be changed into another prime (72647023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36323513 + 36323514.

It is an arithmetic number, because the mean of its divisors is an integer number (36323514).

Almost surely, 2^72647027 is an apocalyptic number.

72647027 is a deficient number, since it is larger than the sum of its proper divisors (1).

72647027 is an equidigital number, since it uses as much as digits as its factorization.

72647027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32928, while the sum is 35.

The square root of 72647027 is about 8523.3225329093. The cubic root of 72647027 is about 417.2592265131.

The spelling of 72647027 in words is "seventy-two million, six hundred forty-seven thousand, twenty-seven".