227870009 has 4 divisors (see below), whose sum is σ = 228823680. Its totient is φ = 226916340.

The previous prime is 227870003. The next prime is 227870017. The reversal of 227870009 is 900078722.

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 a de Polignac number, because none of the positive numbers 2^k-227870009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (227870003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476477 + ... + 476954.

It is an arithmetic number, because the mean of its divisors is an integer number (57205920).

Almost surely, 2^227870009 is an apocalyptic number.

It is an amenable number.

227870009 is a deficient number, since it is larger than the sum of its proper divisors (953671).

227870009 is an equidigital number, since it uses as much as digits as its factorization.

227870009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953670.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 227870009 is about 15095.3638246980. The cubic root of 227870009 is about 610.7953514899.

The spelling of 227870009 in words is "two hundred twenty-seven million, eight hundred seventy thousand, nine".