30690799 has 2 divisors, whose sum is σ = 30690800. Its totient is φ = 30690798.

The previous prime is 30690767. The next prime is 30690817. The reversal of 30690799 is 99709603.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30690799 - 2⁵ = 30690767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30690199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15345399 + 15345400.

It is an arithmetic number, because the mean of its divisors is an integer number (15345400).

Almost surely, 2^30690799 is an apocalyptic number.

30690799 is a deficient number, since it is larger than the sum of its proper divisors (1).

30690799 is an equidigital number, since it uses as much as digits as its factorization.

30690799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 91854, while the sum is 43.

The square root of 30690799 is about 5539.9277071095. The cubic root of 30690799 is about 313.0901454160.

The spelling of 30690799 in words is "thirty million, six hundred ninety thousand, seven hundred ninety-nine".