235806641 has 4 divisors (see below), whose sum is σ = 269493312. Its totient is φ = 202119972.

The previous prime is 235806631. The next prime is 235806647. The reversal of 235806641 is 146608532.

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 a cyclic number.

It is not a de Polignac number, because 235806641 - 2¹⁰ = 235805617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (235806647) 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, 16843325 + ... + 16843338.

It is an arithmetic number, because the mean of its divisors is an integer number (67373328).

Almost surely, 2^235806641 is an apocalyptic number.

It is an amenable number.

235806641 is a deficient number, since it is larger than the sum of its proper divisors (33686671).

235806641 is an equidigital number, since it uses as much as digits as its factorization.

235806641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33686670.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 235806641 is about 15355.9969067462. The cubic root of 235806641 is about 617.8058419270.

The spelling of 235806641 in words is "two hundred thirty-five million, eight hundred six thousand, six hundred forty-one".