72770267 has 2 divisors, whose sum is σ = 72770268. Its totient is φ = 72770266.

The previous prime is 72770261. The next prime is 72770287. The reversal of 72770267 is 76207727.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72770267 - 2²⁴ = 55993051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72770267.

It is not a weakly prime, because it can be changed into another prime (72770261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36385133 + 36385134.

It is an arithmetic number, because the mean of its divisors is an integer number (36385134).

Almost surely, 2^72770267 is an apocalyptic number.

72770267 is a deficient number, since it is larger than the sum of its proper divisors (1).

72770267 is an equidigital number, since it uses as much as digits as its factorization.

72770267 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57624, while the sum is 38.

The square root of 72770267 is about 8530.5490444637. The cubic root of 72770267 is about 417.4950424310.

It can be divided in two parts, 72770 and 267, that added together give a palindrome (73037).

The spelling of 72770267 in words is "seventy-two million, seven hundred seventy thousand, two hundred sixty-seven".