1165947 has 8 divisors (see below), whose sum is σ = 1584144. Its totient is φ = 762528.

The previous prime is 1165943. The next prime is 1165949. The reversal of 1165947 is 7495611.

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

It is not a de Polignac number, because 1165947 - 2² = 1165943 is a prime.

1165947 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1165943) 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, 3508 + ... + 3825.

It is an arithmetic number, because the mean of its divisors is an integer number (198018).

2^1165947 is an apocalyptic number.

1165947 is a deficient number, since it is larger than the sum of its proper divisors (418197).

1165947 is an equidigital number, since it uses as much as digits as its factorization.

1165947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7389.

The product of its digits is 7560, while the sum is 33.

The square root of 1165947 is about 1079.7902574111. The cubic root of 1165947 is about 105.2510094445.

It can be divided in two parts, 1165 and 947, that added together give a palindrome (2112).

The spelling of 1165947 in words is "one million, one hundred sixty-five thousand, nine hundred forty-seven".