1005487 has 6 divisors (see below), whose sum is σ = 1152168. Its totient is φ = 859572.

The previous prime is 1005481. The next prime is 1005493. The reversal of 1005487 is 7845001.

It is an interprime number because it is at equal distance from previous prime (1005481) and next prime (1005493).

It is not a de Polignac number, because 1005487 - 2⁷ = 1005359 is a prime.

It is a super-2 number, since 2×1005487² = 2022008214338, which contains 22 as substring.

It is a Duffinian number.

1005487 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005481) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2464 + ... + 2842.

It is an arithmetic number, because the mean of its divisors is an integer number (192028).

2^1005487 is an apocalyptic number.

1005487 is a deficient number, since it is larger than the sum of its proper divisors (146681).

1005487 is an frugal number, since it uses more digits than its factorization.

1005487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 1005487 is about 1002.7397468935. The cubic root of 1005487 is about 100.1825664919.

The spelling of 1005487 in words is "one million, five thousand, four hundred eighty-seven".