235898881 has 3 divisors (see below), whose sum is σ = 235914241. Its totient is φ = 235883522.

The previous prime is 235898857. The next prime is 235898921. The reversal of 235898881 is 188898532.

It is a happy number.

The square root of 235898881 is 15359.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 235898881 - 2¹¹ = 235896833 is a prime.

It is a super-2 number, since 2×235898881² = 111296564114104322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (235898981) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 7680 + ... + 23038.

Almost surely, 2^235898881 is an apocalyptic number.

235898881 is the 15359-th square number.

235898881 is the 7680-th centered octagonal number.

It is an amenable number.

235898881 is a deficient number, since it is larger than the sum of its proper divisors (15360).

235898881 is an frugal number, since it uses more digits than its factorization.

235898881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30718 (or 15359 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 52.

The cubic root of 235898881 is about 617.8863867070.

The spelling of 235898881 in words is "two hundred thirty-five million, eight hundred ninety-eight thousand, eight hundred eighty-one".