227649965 has 4 divisors (see below), whose sum is σ = 273179964. Its totient is φ = 182119968.

The previous prime is 227649959. The next prime is 227649977. The reversal of 227649965 is 569946722.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 119552356 + 108097609 = 10934^2 + 10397^2 .

It is a cyclic number.

It is not a de Polignac number, because 227649965 - 2⁴ = 227649949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22764992 + ... + 22765001.

It is an arithmetic number, because the mean of its divisors is an integer number (68294991).

Almost surely, 2^227649965 is an apocalyptic number.

It is an amenable number.

227649965 is a deficient number, since it is larger than the sum of its proper divisors (45529999).

227649965 is an equidigital number, since it uses as much as digits as its factorization.

227649965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45529998.

The product of its digits is 1632960, while the sum is 50.

The square root of 227649965 is about 15088.0736013581. The cubic root of 227649965 is about 610.5986821430.

The spelling of 227649965 in words is "two hundred twenty-seven million, six hundred forty-nine thousand, nine hundred sixty-five".