7005428 has 24 divisors (see below), whose sum is σ = 13172544. Its totient is φ = 3248000.

The previous prime is 7005421. The next prime is 7005451. The reversal of 7005428 is 8245007.

It is a junction number, because it is equal to n+sod(n) for n = 7005397 and 7005406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7005421) 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 7 ways as a sum of consecutive naturals, for example, 4103 + ... + 5553.

It is an arithmetic number, because the mean of its divisors is an integer number (548856).

Almost surely, 2^7005428 is an apocalyptic number.

It is an amenable number.

7005428 is a deficient number, since it is larger than the sum of its proper divisors (6167116).

7005428 is a wasteful number, since it uses less digits than its factorization.

7005428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543 (or 1541 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 7005428 is about 2646.7769078636. The cubic root of 7005428 is about 191.3425502189.

The spelling of 7005428 in words is "seven million, five thousand, four hundred twenty-eight".