227849665 has 8 divisors (see below), whose sum is σ = 282848040. Its totient is φ = 175994112.

The previous prime is 227849651. The next prime is 227849719. The reversal of 227849665 is 566948722.

227849665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 64112049 + 163737616 = 8007^2 + 12796^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 227849665 - 2⁷ = 227849537 is a prime.

It is a super-2 number, since 2×227849665² = 103830939681224450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 785544 + ... + 785833.

It is an arithmetic number, because the mean of its divisors is an integer number (35356005).

Almost surely, 2^227849665 is an apocalyptic number.

It is an amenable number.

227849665 is a deficient number, since it is larger than the sum of its proper divisors (54998375).

227849665 is a wasteful number, since it uses less digits than its factorization.

227849665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571411.

The product of its digits is 1451520, while the sum is 49.

The square root of 227849665 is about 15094.6899603801. The cubic root of 227849665 is about 610.7771738887. Note that the first 3 decimals are identical.

The spelling of 227849665 in words is "two hundred twenty-seven million, eight hundred forty-nine thousand, six hundred sixty-five".