30740797 has 2 divisors, whose sum is σ = 30740798.
Its totient is φ = 30740796.
The previous prime is 30740789. The next prime is 30740807. The reversal of 30740797 is 79704703.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 27258841 + 3481956 = 5221^2 + 1866^2
It is a cyclic number.
It is not a de Polignac number, because 30740797 - 23 = 30740789 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30740707) 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, 15370398 + 15370399.
It is an arithmetic number, because the mean of its divisors is an integer number (15370399).
Almost surely, 230740797 is an apocalyptic number.
It is an amenable number.
30740797 is a deficient number, since it is larger than the sum of its proper divisors (1).
30740797 is an equidigital number, since it uses as much as digits as its factorization.
30740797 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 37.
The square root of 30740797 is about 5544.4383845436.
The cubic root of 30740797 is about 313.2600702661.
The spelling of 30740797 in words is "thirty million, seven hundred forty thousand, seven hundred ninety-seven".