7478791 has 2 divisors, whose sum is σ = 7478792. Its totient is φ = 7478790.

The previous prime is 7478771. The next prime is 7478813. The reversal of 7478791 is 1978747.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7478791 - 2⁹ = 7478279 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7478701) 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, 3739395 + 3739396.

It is an arithmetic number, because the mean of its divisors is an integer number (3739396).

Almost surely, 2^7478791 is an apocalyptic number.

7478791 is a deficient number, since it is larger than the sum of its proper divisors (1).

7478791 is an equidigital number, since it uses as much as digits as its factorization.

7478791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 98784, while the sum is 43.

The square root of 7478791 is about 2734.7378302133. The cubic root of 7478791 is about 195.5586957977.

The spelling of 7478791 in words is "seven million, four hundred seventy-eight thousand, seven hundred ninety-one".