7428807 has 16 divisors (see below), whose sum is σ = 11047680. Its totient is φ = 4933656.

The previous prime is 7428803. The next prime is 7428821. The reversal of 7428807 is 7088247.

7428807 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7428807 - 2² = 7428803 is a prime.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7428803) 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, 13308 + ... + 13854.

It is an arithmetic number, because the mean of its divisors is an integer number (690480).

Almost surely, 2^7428807 is an apocalyptic number.

7428807 is a deficient number, since it is larger than the sum of its proper divisors (3618873).

7428807 is a wasteful number, since it uses less digits than its factorization.

7428807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059 (or 1053 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 7428807 is about 2725.5837906768. The cubic root of 7428807 is about 195.1220537661.

The spelling of 7428807 in words is "seven million, four hundred twenty-eight thousand, eight hundred seven".