30922769 has 2 divisors, whose sum is σ = 30922770. Its totient is φ = 30922768.

The previous prime is 30922699. The next prime is 30922781. The reversal of 30922769 is 96722903.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16000000 + 14922769 = 4000^2 + 3863^2 .

It is a cyclic number.

It is not a de Polignac number, because 30922769 - 2²⁰ = 29874193 is a prime.

It is a super-2 number, since 2×30922769² = 1912435285254722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30922799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15461384 + 15461385.

It is an arithmetic number, because the mean of its divisors is an integer number (15461385).

Almost surely, 2^30922769 is an apocalyptic number.

It is an amenable number.

30922769 is a deficient number, since it is larger than the sum of its proper divisors (1).

30922769 is an equidigital number, since it uses as much as digits as its factorization.

30922769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 30922769 is about 5560.8244892282. The cubic root of 30922769 is about 313.8769752140.

The spelling of 30922769 in words is "thirty million, nine hundred twenty-two thousand, seven hundred sixty-nine".