227420865 has 80 divisors (see below), whose sum is σ = 471284352. Its totient is φ = 102767616.

The previous prime is 227420857. The next prime is 227420873. The reversal of 227420865 is 568024722.

227420865 is a `hidden beast` number, since 227 + 420 + 8 + 6 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (227420857) and next prime (227420873).

It is not a de Polignac number, because 227420865 - 2³ = 227420857 is a prime.

It is an unprimeable number.

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 79 ways as a sum of consecutive naturals, for example, 274582 + ... + 275408.

Almost surely, 2^227420865 is an apocalyptic number.

It is an amenable number.

227420865 is an abundant number, since it is smaller than the sum of its proper divisors (243863487).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

227420865 is an equidigital number, since it uses as much as digits as its factorization.

227420865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948 (or 939 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 227420865 is about 15080.4796011267. The cubic root of 227420865 is about 610.3937840799.

The spelling of 227420865 in words is "two hundred twenty-seven million, four hundred twenty thousand, eight hundred sixty-five".