72767071 has 4 divisors (see below), whose sum is σ = 78364552. Its totient is φ = 67169592.

The previous prime is 72767059. The next prime is 72767099. The reversal of 72767071 is 17076727.

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 72767071 - 2⁷ = 72766943 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72767071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72767171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2798721 + ... + 2798746.

It is an arithmetic number, because the mean of its divisors is an integer number (19591138).

Almost surely, 2^72767071 is an apocalyptic number.

72767071 is a deficient number, since it is larger than the sum of its proper divisors (5597481).

72767071 is a wasteful number, since it uses less digits than its factorization.

72767071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5597480.

The product of its (nonzero) digits is 28812, while the sum is 37.

The square root of 72767071 is about 8530.3617156601. The cubic root of 72767071 is about 417.4889303482.

The spelling of 72767071 in words is "seventy-two million, seven hundred sixty-seven thousand, seventy-one".