7478089 has 2 divisors, whose sum is σ = 7478090. Its totient is φ = 7478088.

The previous prime is 7478069. The next prime is 7478111. The reversal of 7478089 is 9808747.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4804864 + 2673225 = 2192^2 + 1635^2 .

It is a cyclic number.

It is not a de Polignac number, because 7478089 - 2⁷ = 7477961 is a prime.

It is not a weakly prime, because it can be changed into another prime (7478069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3739044 + 3739045.

It is an arithmetic number, because the mean of its divisors is an integer number (3739045).

Almost surely, 2^7478089 is an apocalyptic number.

It is an amenable number.

7478089 is a deficient number, since it is larger than the sum of its proper divisors (1).

7478089 is an equidigital number, since it uses as much as digits as its factorization.

7478089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 7478089 is about 2734.6094785179. The cubic root of 7478089 is about 195.5525768720.

It can be divided in two parts, 747 and 8089, that added together give a square (8836 = 94²).

The spelling of 7478089 in words is "seven million, four hundred seventy-eight thousand, eighty-nine".