227637664 has 12 divisors (see below), whose sum is σ = 448161714. Its totient is φ = 113818816.

The previous prime is 227637661. The next prime is 227637691. The reversal of 227637664 is 466736722.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 155251600 + 72386064 = 12460^2 + 8508^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 227637664.

It is not an unprimeable number, because it can be changed into a prime (227637661) 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 as a sum of consecutive naturals, namely, 3556807 + ... + 3556870.

Almost surely, 2^227637664 is an apocalyptic number.

It is an amenable number.

227637664 is a deficient number, since it is larger than the sum of its proper divisors (220524050).

227637664 is an equidigital number, since it uses as much as digits as its factorization.

227637664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7113687 (or 7113679 counting only the distinct ones).

The product of its digits is 508032, while the sum is 43.

The square root of 227637664 is about 15087.6659560053. The cubic root of 227637664 is about 610.5876841039.

The spelling of 227637664 in words is "two hundred twenty-seven million, six hundred thirty-seven thousand, six hundred sixty-four".