230688621 has 16 divisors (see below), whose sum is σ = 343389120. Its totient is φ = 153059760.

The previous prime is 230688613. The next prime is 230688631. The reversal of 230688621 is 126886032.

230688621 is a `hidden beast` number, since 23 + 0 + 6 + 8 + 8 + 621 = 666.

It is not a de Polignac number, because 230688621 - 2³ = 230688613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230688631) 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 15 ways as a sum of consecutive naturals, for example, 14550 + ... + 25943.

It is an arithmetic number, because the mean of its divisors is an integer number (21461820).

Almost surely, 2^230688621 is an apocalyptic number.

It is an amenable number.

230688621 is a deficient number, since it is larger than the sum of its proper divisors (112700499).

230688621 is a wasteful number, since it uses less digits than its factorization.

230688621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40713 (or 40707 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 230688621 is about 15188.4370822017. The cubic root of 230688621 is about 613.3034263602.

The spelling of 230688621 in words is "two hundred thirty million, six hundred eighty-eight thousand, six hundred twenty-one".