226777649 has 4 divisors (see below), whose sum is σ = 259174464. Its totient is φ = 194380836.

The previous prime is 226777613. The next prime is 226777667. The reversal of 226777649 is 946777622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226777649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 226777597 and 226777606.

It is not an unprimeable number, because it can be changed into a prime (226777849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16198397 + ... + 16198410.

It is an arithmetic number, because the mean of its divisors is an integer number (64793616).

Almost surely, 2^226777649 is an apocalyptic number.

It is an amenable number.

226777649 is a deficient number, since it is larger than the sum of its proper divisors (32396815).

226777649 is an equidigital number, since it uses as much as digits as its factorization.

226777649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32396814.

The product of its digits is 1778112, while the sum is 50.

The square root of 226777649 is about 15059.1383883674. The cubic root of 226777649 is about 609.8177803841.

The spelling of 226777649 in words is "two hundred twenty-six million, seven hundred seventy-seven thousand, six hundred forty-nine".