1206705 has 8 divisors (see below), whose sum is σ = 1930752. Its totient is φ = 643568.

The previous prime is 1206703. The next prime is 1206713. The reversal of 1206705 is 5076021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1206705 - 2¹ = 1206703 is a prime.

It is a super-2 number, since 2×1206705² = 2912273914050, which contains 22 as substring.

It is an Ulam number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (1206701) 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, 40209 + ... + 40238.

It is an arithmetic number, because the mean of its divisors is an integer number (241344).

2^1206705 is an apocalyptic number.

1206705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1206705 is a deficient number, since it is larger than the sum of its proper divisors (724047).

1206705 is an equidigital number, since it uses as much as digits as its factorization.

1206705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80455.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 1206705 is about 1098.5012517062. The cubic root of 1206705 is about 106.4634095905.

The spelling of 1206705 in words is "one million, two hundred six thousand, seven hundred five".