226523987 has 4 divisors (see below), whose sum is σ = 236372880. Its totient is φ = 216675096.

The previous prime is 226523971. The next prime is 226523989. The reversal of 226523987 is 789325622.

226523987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 226523987 - 2⁴ = 226523971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226523989) 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, 4924412 + ... + 4924457.

It is an arithmetic number, because the mean of its divisors is an integer number (59093220).

Almost surely, 2^226523987 is an apocalyptic number.

226523987 is a deficient number, since it is larger than the sum of its proper divisors (9848893).

226523987 is an equidigital number, since it uses as much as digits as its factorization.

226523987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9848892.

The product of its digits is 362880, while the sum is 44.

The square root of 226523987 is about 15050.7138368916. The cubic root of 226523987 is about 609.5903251218.

The spelling of 226523987 in words is "two hundred twenty-six million, five hundred twenty-three thousand, nine hundred eighty-seven".