1117007771 has 4 divisors (see below), whose sum is σ = 1218553944. Its totient is φ = 1015461600.

The previous prime is 1117007747. The next prime is 1117007789. The reversal of 1117007771 is 1777007111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1777007111 = 11 ⋅161546101.

It is a cyclic number.

It is not a de Polignac number, because 1117007771 - 2¹⁸ = 1116745627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1117007741) 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, 50773070 + ... + 50773091.

It is an arithmetic number, because the mean of its divisors is an integer number (304638486).

Almost surely, 2^1117007771 is an apocalyptic number.

1117007771 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1117007771 is a deficient number, since it is larger than the sum of its proper divisors (101546173).

1117007771 is a wasteful number, since it uses less digits than its factorization.

1117007771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101546172.

The product of its (nonzero) digits is 2401, while the sum is 32.

The square root of 1117007771 is about 33421.6661912598. Note that the first 3 decimals coincide. The cubic root of 1117007771 is about 1037.5731662921.

The spelling of 1117007771 in words is "one billion, one hundred seventeen million, seven thousand, seven hundred seventy-one".