227646649 has 2 divisors, whose sum is σ = 227646650. Its totient is φ = 227646648.

The previous prime is 227646641. The next prime is 227646697. The reversal of 227646649 is 946646722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156075049 + 71571600 = 12493^2 + 8460^2 .

It is a cyclic number.

It is not a de Polignac number, because 227646649 - 2³ = 227646641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 227646599 and 227646608.

It is not a weakly prime, because it can be changed into another prime (227646641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113823324 + 113823325.

It is an arithmetic number, because the mean of its divisors is an integer number (113823325).

Almost surely, 2^227646649 is an apocalyptic number.

It is an amenable number.

227646649 is a deficient number, since it is larger than the sum of its proper divisors (1).

227646649 is an equidigital number, since it uses as much as digits as its factorization.

227646649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 46.

The square root of 227646649 is about 15087.9637128408. The cubic root of 227646649 is about 610.5957174232.

The spelling of 227646649 in words is "two hundred twenty-seven million, six hundred forty-six thousand, six hundred forty-nine".