1317772 has 12 divisors (see below), whose sum is σ = 2441880. Its totient is φ = 620096.

The previous prime is 1317763. The next prime is 1317773. The reversal of 1317772 is 2777131.

It is a self number, because there is not a number n which added to its sum of digits gives 1317772.

It is not an unprimeable number, because it can be changed into a prime (1317773) 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, 9622 + ... + 9757.

It is an arithmetic number, because the mean of its divisors is an integer number (203490).

2^1317772 is an apocalyptic number.

It is an amenable number.

1317772 is a deficient number, since it is larger than the sum of its proper divisors (1124108).

1317772 is a wasteful number, since it uses less digits than its factorization.

1317772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19400 (or 19398 counting only the distinct ones).

The product of its digits is 2058, while the sum is 28.

The square root of 1317772 is about 1147.9425072712. The cubic root of 1317772 is about 109.6343783677.

The spelling of 1317772 in words is "one million, three hundred seventeen thousand, seven hundred seventy-two".