72770699 has 2 divisors, whose sum is σ = 72770700. Its totient is φ = 72770698.

The previous prime is 72770651. The next prime is 72770717. The reversal of 72770699 is 99607727.

It is a strong prime.

It is an emirp because it is prime and its reverse (99607727) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72770699 - 2¹⁶ = 72705163 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72770629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36385349 + 36385350.

It is an arithmetic number, because the mean of its divisors is an integer number (36385350).

Almost surely, 2^72770699 is an apocalyptic number.

72770699 is a deficient number, since it is larger than the sum of its proper divisors (1).

72770699 is an equidigital number, since it uses as much as digits as its factorization.

72770699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 333396, while the sum is 47.

The square root of 72770699 is about 8530.5743651878. The cubic root of 72770699 is about 417.4958685812.

The spelling of 72770699 in words is "seventy-two million, seven hundred seventy thousand, six hundred ninety-nine".