30020377 has 2 divisors, whose sum is σ = 30020378. Its totient is φ = 30020376.

The previous prime is 30020329. The next prime is 30020381. The reversal of 30020377 is 77302003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23775376 + 6245001 = 4876^2 + 2499^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30020377 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30020327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15010188 + 15010189.

It is an arithmetic number, because the mean of its divisors is an integer number (15010189).

Almost surely, 2^30020377 is an apocalyptic number.

It is an amenable number.

30020377 is a deficient number, since it is larger than the sum of its proper divisors (1).

30020377 is an equidigital number, since it uses as much as digits as its factorization.

30020377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 882, while the sum is 22.

The square root of 30020377 is about 5479.0854163811. The cubic root of 30020377 is about 310.7935858695.

The spelling of 30020377 in words is "thirty million, twenty thousand, three hundred seventy-seven".