1284883887 has 32 divisors (see below), whose sum is σ = 2016460800. Its totient is φ = 712584288.

The previous prime is 1284883879. The next prime is 1284883967. The reversal of 1284883887 is 7883884821.

It is not a de Polignac number, because 1284883887 - 2³ = 1284883879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1284887887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91318 + ... + 104444.

It is an arithmetic number, because the mean of its divisors is an integer number (63014400).

Almost surely, 2^1284883887 is an apocalyptic number.

1284883887 is a deficient number, since it is larger than the sum of its proper divisors (731576913).

1284883887 is a wasteful number, since it uses less digits than its factorization.

1284883887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13275.

The product of its digits is 5505024, while the sum is 57.

The square root of 1284883887 is about 35845.2770529117. The cubic root of 1284883887 is about 1087.1462220358.

The spelling of 1284883887 in words is "one billion, two hundred eighty-four million, eight hundred eighty-three thousand, eight hundred eighty-seven".