235985897 has 4 divisors (see below), whose sum is σ = 269698176. Its totient is φ = 202273620.

The previous prime is 235985887. The next prime is 235985917. The reversal of 235985897 is 798589532.

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 235985897 - 2¹⁰ = 235984873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (235985807) 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, 16856129 + ... + 16856142.

It is an arithmetic number, because the mean of its divisors is an integer number (67424544).

Almost surely, 2^235985897 is an apocalyptic number.

It is an amenable number.

235985897 is a deficient number, since it is larger than the sum of its proper divisors (33712279).

235985897 is an equidigital number, since it uses as much as digits as its factorization.

235985897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33712278.

The product of its digits is 5443200, while the sum is 56.

The square root of 235985897 is about 15361.8324753266. The cubic root of 235985897 is about 617.9623506003.

The spelling of 235985897 in words is "two hundred thirty-five million, nine hundred eighty-five thousand, eight hundred ninety-seven".