3085521 has 8 divisors (see below), whose sum is σ = 4140864. Its totient is φ = 2043600.

The previous prime is 3085499. The next prime is 3085531. The reversal of 3085521 is 1255803.

3085521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 3085521 - 2⁶ = 3085457 is a prime.

3085521 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3085491 and 3085500.

It is not an unprimeable number, because it can be changed into a prime (3085531) 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 in 7 ways as a sum of consecutive naturals, for example, 2805 + ... + 3746.

It is an arithmetic number, because the mean of its divisors is an integer number (517608).

Almost surely, 2^3085521 is an apocalyptic number.

It is an amenable number.

3085521 is a deficient number, since it is larger than the sum of its proper divisors (1055343).

3085521 is a wasteful number, since it uses less digits than its factorization.

3085521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6711.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 3085521 is about 1756.5651140792. The cubic root of 3085521 is about 145.5826103542.

It can be divided in two parts, 30855 and 21, that added together give a triangular number (30876 = T₂₄₈).

The spelling of 3085521 in words is "three million, eighty-five thousand, five hundred twenty-one".