30799009 has 2 divisors, whose sum is σ = 30799010. Its totient is φ = 30799008.

The previous prime is 30798997. The next prime is 30799033. The reversal of 30799009 is 90099703.

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., 30747025 + 51984 = 5545^2 + 228^2 .

It is a cyclic number.

It is not a de Polignac number, because 30799009 - 2⁹ = 30798497 is a prime.

It is not a weakly prime, because it can be changed into another prime (30799049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15399504 + 15399505.

It is an arithmetic number, because the mean of its divisors is an integer number (15399505).

Almost surely, 2^30799009 is an apocalyptic number.

It is an amenable number.

30799009 is a deficient number, since it is larger than the sum of its proper divisors (1).

30799009 is an equidigital number, since it uses as much as digits as its factorization.

30799009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15309, while the sum is 37.

The square root of 30799009 is about 5549.6854865839. The cubic root of 30799009 is about 313.4576795085.

The spelling of 30799009 in words is "thirty million, seven hundred ninety-nine thousand, nine".