1089487 has 16 divisors (see below), whose sum is σ = 1331712. Its totient is φ = 871200.

The previous prime is 1089481. The next prime is 1089497. The reversal of 1089487 is 7849801.

It is a cyclic number.

It is not a de Polignac number, because 1089487 - 2⁷ = 1089359 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 (1089481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10737 + ... + 10837.

It is an arithmetic number, because the mean of its divisors is an integer number (83232).

2^1089487 is an apocalyptic number.

1089487 is a deficient number, since it is larger than the sum of its proper divisors (242225).

1089487 is a wasteful number, since it uses less digits than its factorization.

1089487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 1089487 is about 1043.7849395350. The cubic root of 1089487 is about 102.8980988611.

It can be divided in two parts, 108 and 9487, that multiplied together give a triangular number (1024596 = T₁₄₃₁).

The spelling of 1089487 in words is "one million, eighty-nine thousand, four hundred eighty-seven".