30088021 has 2 divisors, whose sum is σ = 30088022. Its totient is φ = 30088020.

The previous prime is 30087997. The next prime is 30088027. The reversal of 30088021 is 12088003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27941796 + 2146225 = 5286^2 + 1465^2 .

It is a cyclic number.

It is not a de Polignac number, because 30088021 - 2¹⁵ = 30055253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30087983 and 30088001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30088027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15044010 + 15044011.

It is an arithmetic number, because the mean of its divisors is an integer number (15044011).

Almost surely, 2^30088021 is an apocalyptic number.

It is an amenable number.

30088021 is a deficient number, since it is larger than the sum of its proper divisors (1).

30088021 is an equidigital number, since it uses as much as digits as its factorization.

30088021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 30088021 is about 5485.2548710156. The cubic root of 30088021 is about 311.0268446619.

The spelling of 30088021 in words is "thirty million, eighty-eight thousand, twenty-one".