30869913 has 4 divisors (see below), whose sum is σ = 41159888. Its totient is φ = 20579940.

The previous prime is 30869911. The next prime is 30869953. The reversal of 30869913 is 31996803.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 30869913 - 2¹ = 30869911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30869911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5144983 + ... + 5144988.

It is an arithmetic number, because the mean of its divisors is an integer number (10289972).

Almost surely, 2^30869913 is an apocalyptic number.

It is an amenable number.

30869913 is a deficient number, since it is larger than the sum of its proper divisors (10289975).

30869913 is a wasteful number, since it uses less digits than its factorization.

30869913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10289974.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 30869913 is about 5556.0699239660. The cubic root of 30869913 is about 313.6980375632.

The spelling of 30869913 in words is "thirty million, eight hundred sixty-nine thousand, nine hundred thirteen".