226679389 has 4 divisors (see below), whose sum is σ = 226709980. Its totient is φ = 226648800.

The previous prime is 226679371. The next prime is 226679407. The reversal of 226679389 is 983976622.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 983976622 = 2 ⋅491988311.

It is an interprime number because it is at equal distance from previous prime (226679371) and next prime (226679407).

It can be written as a sum of positive squares in 2 ways, for example, as 128074489 + 98604900 = 11317^2 + 9930^2 .

It is a cyclic number.

It is not a de Polignac number, because 226679389 - 2¹⁷ = 226548317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226679489) 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, 3607 + ... + 21595.

It is an arithmetic number, because the mean of its divisors is an integer number (56677495).

Almost surely, 2^226679389 is an apocalyptic number.

It is an amenable number.

226679389 is a deficient number, since it is larger than the sum of its proper divisors (30591).

226679389 is a wasteful number, since it uses less digits than its factorization.

226679389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30590.

The product of its digits is 1959552, while the sum is 52.

The square root of 226679389 is about 15055.8755640448. The cubic root of 226679389 is about 609.7296921153.

The spelling of 226679389 in words is "two hundred twenty-six million, six hundred seventy-nine thousand, three hundred eighty-nine".