30777941 has 2 divisors, whose sum is σ = 30777942. Its totient is φ = 30777940.

The previous prime is 30777919. The next prime is 30778021. The reversal of 30777941 is 14977703.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28313041 + 2464900 = 5321^2 + 1570^2 .

It is a cyclic number.

It is not a de Polignac number, because 30777941 - 2²² = 26583637 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 30777895 and 30777904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30777041) 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, 15388970 + 15388971.

It is an arithmetic number, because the mean of its divisors is an integer number (15388971).

Almost surely, 2^30777941 is an apocalyptic number.

It is an amenable number.

30777941 is a deficient number, since it is larger than the sum of its proper divisors (1).

30777941 is an equidigital number, since it uses as much as digits as its factorization.

30777941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37044, while the sum is 38.

The square root of 30777941 is about 5547.7870362875. The cubic root of 30777941 is about 313.3861898407.

The spelling of 30777941 in words is "thirty million, seven hundred seventy-seven thousand, nine hundred forty-one".