72656267 has 2 divisors, whose sum is σ = 72656268. Its totient is φ = 72656266.

The previous prime is 72656261. The next prime is 72656329. The reversal of 72656267 is 76265627.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (76265627) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72656267 - 2⁴ = 72656251 is a prime.

It is not a weakly prime, because it can be changed into another prime (72656261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36328133 + 36328134.

It is an arithmetic number, because the mean of its divisors is an integer number (36328134).

Almost surely, 2^72656267 is an apocalyptic number.

72656267 is a deficient number, since it is larger than the sum of its proper divisors (1).

72656267 is an equidigital number, since it uses as much as digits as its factorization.

72656267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 41.

The square root of 72656267 is about 8523.8645578165. The cubic root of 72656267 is about 417.2769162106.

The spelling of 72656267 in words is "seventy-two million, six hundred fifty-six thousand, two hundred sixty-seven".