30299869 has 2 divisors, whose sum is σ = 30299870. Its totient is φ = 30299868.

The previous prime is 30299849. The next prime is 30299873. The reversal of 30299869 is 96899203.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15760900 + 14538969 = 3970^2 + 3813^2 .

It is a cyclic number.

It is not a de Polignac number, because 30299869 - 2⁵ = 30299837 is a prime.

It is a super-2 number, since 2×30299869² = 1836164122834322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30299839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15149934 + 15149935.

It is an arithmetic number, because the mean of its divisors is an integer number (15149935).

Almost surely, 2^30299869 is an apocalyptic number.

It is an amenable number.

30299869 is a deficient number, since it is larger than the sum of its proper divisors (1).

30299869 is an equidigital number, since it uses as much as digits as its factorization.

30299869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 30299869 is about 5504.5316785354. The cubic root of 30299869 is about 311.7551120516.

The spelling of 30299869 in words is "thirty million, two hundred ninety-nine thousand, eight hundred sixty-nine".