30708229 has 4 divisors (see below), whose sum is σ = 30724876. Its totient is φ = 30691584.

The previous prime is 30708217. The next prime is 30708241. The reversal of 30708229 is 92280703.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92280703 = 1373 ⋅67211.

It is an interprime number because it is at equal distance from previous prime (30708217) and next prime (30708241).

It can be written as a sum of positive squares in 2 ways, for example, as 5688225 + 25020004 = 2385^2 + 5002^2 .

It is a cyclic number.

It is not a de Polignac number, because 30708229 - 2¹³ = 30700037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30708229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30708329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5154 + ... + 9379.

It is an arithmetic number, because the mean of its divisors is an integer number (7681219).

Almost surely, 2^30708229 is an apocalyptic number.

It is an amenable number.

30708229 is a deficient number, since it is larger than the sum of its proper divisors (16647).

30708229 is a wasteful number, since it uses less digits than its factorization.

30708229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16646.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 30708229 is about 5541.5006090408. The cubic root of 30708229 is about 313.1494045279.

The spelling of 30708229 in words is "thirty million, seven hundred eight thousand, two hundred twenty-nine".