1117947 has 16 divisors (see below), whose sum is σ = 1562400. Its totient is φ = 710400.

The previous prime is 1117943. The next prime is 1117967. The reversal of 1117947 is 7497111.

It is not a de Polignac number, because 1117947 - 2² = 1117943 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1117943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7429 + ... + 7577.

It is an arithmetic number, because the mean of its divisors is an integer number (97650).

2^1117947 is an apocalyptic number.

1117947 is a deficient number, since it is larger than the sum of its proper divisors (444453).

1117947 is a wasteful number, since it uses less digits than its factorization.

1117947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254.

The product of its digits is 1764, while the sum is 30.

The square root of 1117947 is about 1057.3301282003. The cubic root of 1117947 is about 103.7863897124.

The spelling of 1117947 in words is "one million, one hundred seventeen thousand, nine hundred forty-seven".