1528887 has 8 divisors (see below), whose sum is σ = 2064640. Its totient is φ = 1006200.

The previous prime is 1528871. The next prime is 1528897. The reversal of 1528887 is 7888251.

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

It is not a de Polignac number, because 1528887 - 2⁴ = 1528871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1528897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2989 + ... + 3462.

It is an arithmetic number, because the mean of its divisors is an integer number (258080).

2^1528887 is an apocalyptic number.

1528887 is a deficient number, since it is larger than the sum of its proper divisors (535753).

1528887 is an equidigital number, since it uses as much as digits as its factorization.

1528887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6533.

The product of its digits is 35840, while the sum is 39.

The square root of 1528887 is about 1236.4817022504. The cubic root of 1528887 is about 115.2015871936.

It can be divided in two parts, 1528 and 887, that added together give a triangular number (2415 = T₆₉).

The spelling of 1528887 in words is "one million, five hundred twenty-eight thousand, eight hundred eighty-seven".