1201717 has 8 divisors (see below), whose sum is σ = 1324512. Its totient is φ = 1081200.

The previous prime is 1201709. The next prime is 1201729. The reversal of 1201717 is 7171021.

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 1201717 - 2³ = 1201709 is a prime.

It is a Duffinian number.

1201717 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1201694 and 1201703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201787) 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, 667 + ... + 1687.

It is an arithmetic number, because the mean of its divisors is an integer number (165564).

2^1201717 is an apocalyptic number.

It is an amenable number.

1201717 is a deficient number, since it is larger than the sum of its proper divisors (122795).

1201717 is a wasteful number, since it uses less digits than its factorization.

1201717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139.

The product of its (nonzero) digits is 98, while the sum is 19.

The square root of 1201717 is about 1096.2285345675. The cubic root of 1201717 is about 106.3165156746.

Adding to 1201717 its reverse (7171021), we get a palindrome (8372738).

The spelling of 1201717 in words is "one million, two hundred one thousand, seven hundred seventeen".