7428655 has 16 divisors (see below), whose sum is σ = 10019520. Its totient is φ = 5246208.

The previous prime is 7428653. The next prime is 7428671. The reversal of 7428655 is 5568247.

It is a happy number.

It is not a de Polignac number, because 7428655 - 2¹ = 7428653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7428653) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 990 + ... + 3979.

It is an arithmetic number, because the mean of its divisors is an integer number (626220).

Almost surely, 2^7428655 is an apocalyptic number.

7428655 is a deficient number, since it is larger than the sum of its proper divisors (2590865).

7428655 is a wasteful number, since it uses less digits than its factorization.

7428655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5010.

The product of its digits is 67200, while the sum is 37.

The square root of 7428655 is about 2725.5559065996. Note that the first 3 decimals coincide. The cubic root of 7428655 is about 195.1207229667.

The spelling of 7428655 in words is "seven million, four hundred twenty-eight thousand, six hundred fifty-five".