231606433 has 8 divisors (see below), whose sum is σ = 236868480. Its totient is φ = 226402800.

The previous prime is 231606407. The next prime is 231606451. The reversal of 231606433 is 334606132.

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

It is a cyclic number.

It is not a de Polignac number, because 231606433 - 2⁹ = 231605921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231606493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6535 + ... + 22492.

It is an arithmetic number, because the mean of its divisors is an integer number (29608560).

Almost surely, 2^231606433 is an apocalyptic number.

It is an amenable number.

231606433 is a deficient number, since it is larger than the sum of its proper divisors (5262047).

231606433 is a wasteful number, since it uses less digits than its factorization.

231606433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29207.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 231606433 is about 15218.6212581824. The cubic root of 231606433 is about 614.1157079802.

The spelling of 231606433 in words is "two hundred thirty-one million, six hundred six thousand, four hundred thirty-three".