7427545 has 8 divisors (see below), whose sum is σ = 8928000. Its totient is φ = 5932080.

The previous prime is 7427533. The next prime is 7427561. The reversal of 7427545 is 5457247.

7427545 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7427545 - 2⁹ = 7427033 is a prime.

7427545 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 7427545.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4206 + ... + 5704.

It is an arithmetic number, because the mean of its divisors is an integer number (1116000).

Almost surely, 2^7427545 is an apocalyptic number.

It is an amenable number.

7427545 is a deficient number, since it is larger than the sum of its proper divisors (1500455).

7427545 is a wasteful number, since it uses less digits than its factorization.

7427545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2495.

The product of its digits is 39200, while the sum is 34.

The square root of 7427545 is about 2725.3522708083. The cubic root of 7427545 is about 195.1110040790. Note that the first 3 decimals are identical.

The spelling of 7427545 in words is "seven million, four hundred twenty-seven thousand, five hundred forty-five".