1286888 has 8 divisors (see below), whose sum is σ = 2412930. Its totient is φ = 643440.

The previous prime is 1286881. The next prime is 1286939. The reversal of 1286888 is 8886821.

It can be written as a sum of positive squares in only one way, i.e., 879844 + 407044 = 938^2 + 638^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1286881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80423 + ... + 80438.

2^1286888 is an apocalyptic number.

It is an amenable number.

1286888 is a deficient number, since it is larger than the sum of its proper divisors (1126042).

1286888 is a wasteful number, since it uses less digits than its factorization.

1286888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160867 (or 160863 counting only the distinct ones).

The product of its digits is 49152, while the sum is 41.

The square root of 1286888 is about 1134.4108603147. The cubic root of 1286888 is about 108.7711158187.

The spelling of 1286888 in words is "one million, two hundred eighty-six thousand, eight hundred eighty-eight".