72289067 has 4 divisors (see below), whose sum is σ = 72321600. Its totient is φ = 72256536.

The previous prime is 72289057. The next prime is 72289081. The reversal of 72289067 is 76098227.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72289067 - 2⁴ = 72289051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72289057) 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 in 3 ways as a sum of consecutive naturals, for example, 12668 + ... + 17465.

It is an arithmetic number, because the mean of its divisors is an integer number (18080400).

Almost surely, 2^72289067 is an apocalyptic number.

72289067 is a deficient number, since it is larger than the sum of its proper divisors (32533).

72289067 is a wasteful number, since it uses less digits than its factorization.

72289067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32532.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 72289067 is about 8502.2977482561. The cubic root of 72289067 is about 416.5727652574.

The spelling of 72289067 in words is "seventy-two million, two hundred eighty-nine thousand, sixty-seven".