30772769 has 2 divisors, whose sum is σ = 30772770. Its totient is φ = 30772768.

The previous prime is 30772757. The next prime is 30772783. The reversal of 30772769 is 96727703.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30382144 + 390625 = 5512^2 + 625^2 .

It is a cyclic number.

It is not a de Polignac number, because 30772769 - 2⁸ = 30772513 is a prime.

It is a super-2 number, since 2×30772769² = 1893926623854722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30774769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15386384 + 15386385.

It is an arithmetic number, because the mean of its divisors is an integer number (15386385).

Almost surely, 2^30772769 is an apocalyptic number.

It is an amenable number.

30772769 is a deficient number, since it is larger than the sum of its proper divisors (1).

30772769 is an equidigital number, since it uses as much as digits as its factorization.

30772769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 111132, while the sum is 41.

The square root of 30772769 is about 5547.3208848957. The cubic root of 30772769 is about 313.3686347984.

The spelling of 30772769 in words is "thirty million, seven hundred seventy-two thousand, seven hundred sixty-nine".