7428566 has 8 divisors (see below), whose sum is σ = 11251344. Its totient is φ = 3678120.

The previous prime is 7428539. The next prime is 7428571. The reversal of 7428566 is 6658247.

It is a happy number.

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

It is an Ulam number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 17825 + ... + 18236.

It is an arithmetic number, because the mean of its divisors is an integer number (1406418).

Almost surely, 2^7428566 is an apocalyptic number.

7428566 is a deficient number, since it is larger than the sum of its proper divisors (3822778).

7428566 is a wasteful number, since it uses less digits than its factorization.

7428566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36166.

The product of its digits is 80640, while the sum is 38.

The square root of 7428566 is about 2725.5395796062. The cubic root of 7428566 is about 195.1199437403.

The spelling of 7428566 in words is "seven million, four hundred twenty-eight thousand, five hundred sixty-six".