30770539 has 2 divisors, whose sum is σ = 30770540. Its totient is φ = 30770538.

The previous prime is 30770521. The next prime is 30770563. The reversal of 30770539 is 93507703.

It is a weak prime.

It is an emirp because it is prime and its reverse (93507703) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30770539 is a prime.

It is not a weakly prime, because it can be changed into another prime (30770039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15385269 + 15385270.

It is an arithmetic number, because the mean of its divisors is an integer number (15385270).

Almost surely, 2^30770539 is an apocalyptic number.

30770539 is a deficient number, since it is larger than the sum of its proper divisors (1).

30770539 is an equidigital number, since it uses as much as digits as its factorization.

30770539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19845, while the sum is 34.

The square root of 30770539 is about 5547.1198833268. The cubic root of 30770539 is about 313.3610650220.

The spelling of 30770539 in words is "thirty million, seven hundred seventy thousand, five hundred thirty-nine".