1206999 has 12 divisors (see below), whose sum is σ = 1786512. Its totient is φ = 784800.

The previous prime is 1206979. The next prime is 1207001. The reversal of 1206999 is 9996021.

It is not a de Polignac number, because 1206999 - 2⁸ = 1206743 is a prime.

1206999 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206979) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1267 + ... + 2004.

It is an arithmetic number, because the mean of its divisors is an integer number (148876).

2^1206999 is an apocalyptic number.

1206999 is a deficient number, since it is larger than the sum of its proper divisors (579513).

1206999 is a wasteful number, since it uses less digits than its factorization.

1206999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3318 (or 3315 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 1206999 is about 1098.6350622477. The cubic root of 1206999 is about 106.4720550896.

The spelling of 1206999 in words is "one million, two hundred six thousand, nine hundred ninety-nine".