30239669 has 2 divisors, whose sum is σ = 30239670. Its totient is φ = 30239668.

The previous prime is 30239633. The next prime is 30239689. The reversal of 30239669 is 96693203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23280625 + 6959044 = 4825^2 + 2638^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30239669 is a prime.

It is a super-2 number, since 2×30239669² = 1828875162459122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30239609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15119834 + 15119835.

It is an arithmetic number, because the mean of its divisors is an integer number (15119835).

Almost surely, 2^30239669 is an apocalyptic number.

It is an amenable number.

30239669 is a deficient number, since it is larger than the sum of its proper divisors (1).

30239669 is an equidigital number, since it uses as much as digits as its factorization.

30239669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 38.

The square root of 30239669 is about 5499.0607379806. The cubic root of 30239669 is about 311.5485093903.

The spelling of 30239669 in words is "thirty million, two hundred thirty-nine thousand, six hundred sixty-nine".