1217066 has 8 divisors (see below), whose sum is σ = 1835460. Its totient is φ = 605248.

The previous prime is 1217063. The next prime is 1217071. The reversal of 1217066 is 6607121.

It can be written as a sum of positive squares in 2 ways, for example, as 863041 + 354025 = 929^2 + 595^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1217063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1151 + ... + 1938.

2^1217066 is an apocalyptic number.

1217066 is a deficient number, since it is larger than the sum of its proper divisors (618394).

1217066 is a wasteful number, since it uses less digits than its factorization.

1217066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3288.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1217066 is about 1103.2071428340. The cubic root of 1217066 is about 106.7672467093.

It can be divided in two parts, 121706 and 6, that multiplied together give a triangular number (730236 = T₁₂₀₈).

The spelling of 1217066 in words is "one million, two hundred seventeen thousand, sixty-six".