30688898 has 8 divisors (see below), whose sum is σ = 46681920. Its totient is φ = 15128260.

The previous prime is 30688897. The next prime is 30688901. The reversal of 30688898 is 89888603.

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

It is not an unprimeable number, because it can be changed into a prime (30688897) 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, 107918 + ... + 108201.

It is an arithmetic number, because the mean of its divisors is an integer number (5835240).

Almost surely, 2^30688898 is an apocalyptic number.

30688898 is a deficient number, since it is larger than the sum of its proper divisors (15993022).

30688898 is a wasteful number, since it uses less digits than its factorization.

30688898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216192.

The product of its (nonzero) digits is 663552, while the sum is 50.

The square root of 30688898 is about 5539.7561318166. The cubic root of 30688898 is about 313.0836809741.

The spelling of 30688898 in words is "thirty million, six hundred eighty-eight thousand, eight hundred ninety-eight".