6890528 has 12 divisors (see below), whose sum is σ = 13565790. Its totient is φ = 3445248.

The previous prime is 6890519. The next prime is 6890531. The reversal of 6890528 is 8250986.

It can be written as a sum of positive squares in only one way, i.e., 4963984 + 1926544 = 2228^2 + 1388^2 .

It is a super-2 number, since 2×6890528² = 94958752237568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6890491 and 6890500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107633 + ... + 107696.

Almost surely, 2^6890528 is an apocalyptic number.

It is an amenable number.

6890528 is a deficient number, since it is larger than the sum of its proper divisors (6675262).

6890528 is a wasteful number, since it uses less digits than its factorization.

6890528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215339 (or 215331 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 6890528 is about 2624.9815237445. The cubic root of 6890528 is about 190.2906723537.

The spelling of 6890528 in words is "six million, eight hundred ninety thousand, five hundred twenty-eight".