227987690 has 24 divisors (see below), whose sum is σ = 477379332. Its totient is φ = 78167040.

The previous prime is 227987689. The next prime is 227987699. The reversal of 227987690 is 96789722.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 215884249 + 12103441 = 14693^2 + 3479^2 .

It is a super-2 number, since 2×227987690² = 103956773583072200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (227987699) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 232151 + ... + 233130.

Almost surely, 2^227987690 is an apocalyptic number.

227987690 is an abundant number, since it is smaller than the sum of its proper divisors (249391642).

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

227987690 is a wasteful number, since it uses less digits than its factorization.

227987690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465302 (or 465295 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 50.

The square root of 227987690 is about 15099.2612402064. The cubic root of 227987690 is about 610.9004796108.

The spelling of 227987690 in words is "two hundred twenty-seven million, nine hundred eighty-seven thousand, six hundred ninety".