404655089 has 2 divisors, whose sum is σ = 404655090. Its totient is φ = 404655088.

The previous prime is 404655079. The next prime is 404655149. The reversal of 404655089 is 980556404.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 335182864 + 69472225 = 18308^2 + 8335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404655089 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (404655019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202327544 + 202327545.

It is an arithmetic number, because the mean of its divisors is an integer number (202327545).

Almost surely, 2^404655089 is an apocalyptic number.

It is an amenable number.

404655089 is a deficient number, since it is larger than the sum of its proper divisors (1).

404655089 is an equidigital number, since it uses as much as digits as its factorization.

404655089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 404655089 is about 20116.0405895395. The cubic root of 404655089 is about 739.6535321115.

It can be divided in two parts, 40465 and 5089, that added together give a palindrome (45554).

The spelling of 404655089 in words is "four hundred four million, six hundred fifty-five thousand, eighty-nine".