235221887 has 4 divisors (see below), whose sum is σ = 240226656. Its totient is φ = 230217120.

The previous prime is 235221863. The next prime is 235221941. The reversal of 235221887 is 788122532.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 235221887 - 2²⁴ = 218444671 is a prime.

It is a super-3 number, since 3×235221887³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 235221887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235221827) 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, 2502314 + ... + 2502407.

It is an arithmetic number, because the mean of its divisors is an integer number (60056664).

Almost surely, 2^235221887 is an apocalyptic number.

235221887 is a deficient number, since it is larger than the sum of its proper divisors (5004769).

235221887 is an equidigital number, since it uses as much as digits as its factorization.

235221887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5004768.

The product of its digits is 53760, while the sum is 38.

The square root of 235221887 is about 15336.9451651885. The cubic root of 235221887 is about 617.2947403039.

The spelling of 235221887 in words is "two hundred thirty-five million, two hundred twenty-one thousand, eight hundred eighty-seven".