7478385 has 16 divisors (see below), whose sum is σ = 12669696. Its totient is φ = 3753728.

The previous prime is 7478371. The next prime is 7478389. The reversal of 7478385 is 5838747.

7478385 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 7478385 - 2⁴ = 7478369 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (7478389) 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 in 15 ways as a sum of consecutive naturals, for example, 14409 + ... + 14918.

It is an arithmetic number, because the mean of its divisors is an integer number (791856).

Almost surely, 2^7478385 is an apocalyptic number.

It is an amenable number.

7478385 is a deficient number, since it is larger than the sum of its proper divisors (5191311).

7478385 is a wasteful number, since it uses less digits than its factorization.

7478385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29352.

The product of its digits is 188160, while the sum is 42.

The square root of 7478385 is about 2734.6635990556. The cubic root of 7478385 is about 195.5551569785. Note that the first 3 decimals are identical.

The spelling of 7478385 in words is "seven million, four hundred seventy-eight thousand, three hundred eighty-five".