7025428 has 6 divisors (see below), whose sum is σ = 12294506. Its totient is φ = 3512712.

The previous prime is 7025407. The next prime is 7025429. The reversal of 7025428 is 8245207.

It can be written as a sum of positive squares in only one way, i.e., 6874884 + 150544 = 2622^2 + 388^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7025396 and 7025405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7025429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 878175 + ... + 878182.

Almost surely, 2^7025428 is an apocalyptic number.

It is an amenable number.

7025428 is a deficient number, since it is larger than the sum of its proper divisors (5269078).

7025428 is a wasteful number, since it uses less digits than its factorization.

7025428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1756361 (or 1756359 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 7025428 is about 2650.5523952565. The cubic root of 7025428 is about 191.5244670113.

The spelling of 7025428 in words is "seven million, twenty-five thousand, four hundred twenty-eight".