1528885 has 8 divisors (see below), whose sum is σ = 1846656. Its totient is φ = 1215120.

The previous prime is 1528871. The next prime is 1528897. The reversal of 1528885 is 5888251.

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

It is not a de Polignac number, because 1528885 - 2⁵ = 1528853 is a prime.

It is a Duffinian number.

1528885 is a lucky number.

It is a congruent number.

It is an unprimeable number.

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, 81 + ... + 1750.

It is an arithmetic number, because the mean of its divisors is an integer number (230832).

2^1528885 is an apocalyptic number.

It is an amenable number.

1528885 is a deficient number, since it is larger than the sum of its proper divisors (317771).

1528885 is a wasteful number, since it uses less digits than its factorization.

1528885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2003.

The product of its digits is 25600, while the sum is 37.

The square root of 1528885 is about 1236.4808935038. The cubic root of 1528885 is about 115.2015369603.

It can be divided in two parts, 15 and 28885, that added together give a square (28900 = 170²).

The spelling of 1528885 in words is "one million, five hundred twenty-eight thousand, eight hundred eighty-five".