30042797 has 2 divisors, whose sum is σ = 30042798. Its totient is φ = 30042796.

The previous prime is 30042773. The next prime is 30042827. The reversal of 30042797 is 79724003.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29278921 + 763876 = 5411^2 + 874^2 .

It is a cyclic number.

It is not a de Polignac number, because 30042797 - 2¹⁴ = 30026413 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 (30042737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15021398 + 15021399.

It is an arithmetic number, because the mean of its divisors is an integer number (15021399).

Almost surely, 2^30042797 is an apocalyptic number.

It is an amenable number.

30042797 is a deficient number, since it is larger than the sum of its proper divisors (1).

30042797 is an equidigital number, since it uses as much as digits as its factorization.

30042797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 30042797 is about 5481.1309964277. The cubic root of 30042797 is about 310.8709362005.

The spelling of 30042797 in words is "thirty million, forty-two thousand, seven hundred ninety-seven".