30678797 has 2 divisors, whose sum is σ = 30678798. Its totient is φ = 30678796.

The previous prime is 30678793. The next prime is 30678833. The reversal of 30678797 is 79787603.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17926756 + 12752041 = 4234^2 + 3571^2 .

It is a cyclic number.

It is not a de Polignac number, because 30678797 - 2² = 30678793 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30678793) 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, 15339398 + 15339399.

It is an arithmetic number, because the mean of its divisors is an integer number (15339399).

Almost surely, 2^30678797 is an apocalyptic number.

It is an amenable number.

30678797 is a deficient number, since it is larger than the sum of its proper divisors (1).

30678797 is an equidigital number, since it uses as much as digits as its factorization.

30678797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 444528, while the sum is 47.

The square root of 30678797 is about 5538.8443740549. The cubic root of 30678797 is about 313.0493275597.

The spelling of 30678797 in words is "thirty million, six hundred seventy-eight thousand, seven hundred ninety-seven".