1287006 has 16 divisors (see below), whose sum is σ = 2941824. Its totient is φ = 367704.

The previous prime is 1286983. The next prime is 1287007. The reversal of 1287006 is 6007821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1287007) 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, 15280 + ... + 15363.

It is an arithmetic number, because the mean of its divisors is an integer number (183864).

2^1287006 is an apocalyptic number.

1287006 is an abundant number, since it is smaller than the sum of its proper divisors (1654818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1287006 is a wasteful number, since it uses less digits than its factorization.

1287006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30655.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 1287006 is about 1134.4628684977. The cubic root of 1287006 is about 108.7744402726.

The spelling of 1287006 in words is "one million, two hundred eighty-seven thousand, six".