30838873 has 4 divisors (see below), whose sum is σ = 33211108. Its totient is φ = 28466640.

The previous prime is 30838859. The next prime is 30838877. The reversal of 30838873 is 37883803.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13307904 + 17530969 = 3648^2 + 4187^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30838873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30838877) 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, 1186098 + ... + 1186123.

It is an arithmetic number, because the mean of its divisors is an integer number (8302777).

Almost surely, 2^30838873 is an apocalyptic number.

It is an amenable number.

30838873 is a deficient number, since it is larger than the sum of its proper divisors (2372235).

30838873 is a wasteful number, since it uses less digits than its factorization.

30838873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372234.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 30838873 is about 5553.2758800549. The cubic root of 30838873 is about 313.5928601528.

The spelling of 30838873 in words is "thirty million, eight hundred thirty-eight thousand, eight hundred seventy-three".