1187297 has 8 divisors (see below), whose sum is σ = 1266912. Its totient is φ = 1108800.

The previous prime is 1187287. The next prime is 1187309. The reversal of 1187297 is 7927811.

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 1187297 - 2⁶ = 1187233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1187227) 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, 3422 + ... + 3752.

It is an arithmetic number, because the mean of its divisors is an integer number (158364).

2^1187297 is an apocalyptic number.

1187297 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1187297 is a deficient number, since it is larger than the sum of its proper divisors (79615).

1187297 is a wasteful number, since it uses less digits than its factorization.

1187297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559.

The product of its digits is 7056, while the sum is 35.

The square root of 1187297 is about 1089.6315891162. The cubic root of 1187297 is about 105.8895550717.

The spelling of 1187297 in words is "one million, one hundred eighty-seven thousand, two hundred ninety-seven".