227798649 has 63 divisors (see below), whose sum is σ = 378635967. Its totient is φ = 136923696.

The previous prime is 227798639. The next prime is 227798653. The reversal of 227798649 is 946897722.

The square root of 227798649 is 15093.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 33698025 + 194100624 = 5805^2 + 13932^2 .

It is not a de Polignac number, because 227798649 - 2¹¹ = 227796601 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 227798595 and 227798604.

It is not an unprimeable number, because it can be changed into a prime (227798609) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 5297622 + ... + 5297664.

Almost surely, 2^227798649 is an apocalyptic number.

227798649 is the 15093-rd square number.

227798649 is the 7547-th centered octagonal number.

It is an amenable number.

227798649 is a deficient number, since it is larger than the sum of its proper divisors (150837318).

227798649 is an frugal number, since it uses more digits than its factorization.

227798649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 59 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The cubic root of 227798649 is about 610.7315857387.

The spelling of 227798649 in words is "two hundred twenty-seven million, seven hundred ninety-eight thousand, six hundred forty-nine".