1117622647 has 4 divisors (see below), whose sum is σ = 1166214960. Its totient is φ = 1069030336.

The previous prime is 1117622641. The next prime is 1117622657. The reversal of 1117622647 is 7462267111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1117622647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117622641) 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, 24296122 + ... + 24296167.

It is an arithmetic number, because the mean of its divisors is an integer number (291553740).

Almost surely, 2^1117622647 is an apocalyptic number.

1117622647 is a deficient number, since it is larger than the sum of its proper divisors (48592313).

1117622647 is an equidigital number, since it uses as much as digits as its factorization.

1117622647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48592312.

The product of its digits is 28224, while the sum is 37.

The square root of 1117622647 is about 33430.8636891122. The cubic root of 1117622647 is about 1037.7635146581.

Adding to 1117622647 its reverse (7462267111), we get a palindrome (8579889758).

The spelling of 1117622647 in words is "one billion, one hundred seventeen million, six hundred twenty-two thousand, six hundred forty-seven".