72047167 has 2 divisors, whose sum is σ = 72047168. Its totient is φ = 72047166.

The previous prime is 72047153. The next prime is 72047197. The reversal of 72047167 is 76174027.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72047167 - 2¹¹ = 72045119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72047137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36023583 + 36023584.

It is an arithmetic number, because the mean of its divisors is an integer number (36023584).

Almost surely, 2^72047167 is an apocalyptic number.

72047167 is a deficient number, since it is larger than the sum of its proper divisors (1).

72047167 is an equidigital number, since it uses as much as digits as its factorization.

72047167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16464, while the sum is 34.

The square root of 72047167 is about 8488.0602613318. The cubic root of 72047167 is about 416.1075885894.

The spelling of 72047167 in words is "seventy-two million, forty-seven thousand, one hundred sixty-seven".