30899913 has 8 divisors (see below), whose sum is σ = 44945376. Its totient is φ = 18727200.

The previous prime is 30899903. The next prime is 30899923. The reversal of 30899913 is 31999803.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30899903) and next prime (30899923).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30899913 - 2⁶ = 30899849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30899903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468148 + ... + 468213.

It is an arithmetic number, because the mean of its divisors is an integer number (5618172).

Almost surely, 2^30899913 is an apocalyptic number.

30899913 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

30899913 is a deficient number, since it is larger than the sum of its proper divisors (14045463).

30899913 is a wasteful number, since it uses less digits than its factorization.

30899913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936375.

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 30899913 is about 5558.7690184069. The cubic root of 30899913 is about 313.7996240085.

The spelling of 30899913 in words is "thirty million, eight hundred ninety-nine thousand, nine hundred thirteen".