1171424797 has 6 divisors (see below), whose sum is σ = 1244385818. Its totient is φ = 1102517184.

The previous prime is 1171424789. The next prime is 1171424819. The reversal of 1171424797 is 7974241711.

It can be written as a sum of positive squares in 3 ways, for example, as 802362276 + 369062521 = 28326^2 + 19211^2 .

It is not a de Polignac number, because 1171424797 - 2³ = 1171424789 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 (1171424197) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2026398 + ... + 2026975.

Almost surely, 2^1171424797 is an apocalyptic number.

1171424797 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1171424797 is a deficient number, since it is larger than the sum of its proper divisors (72961021).

1171424797 is an equidigital number, since it uses as much as digits as its factorization.

1171424797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4053407 (or 4053390 counting only the distinct ones).

The product of its digits is 98784, while the sum is 43.

The square root of 1171424797 is about 34226.0835767109. The cubic root of 1171424797 is about 1054.1558042309.

The spelling of 1171424797 in words is "one billion, one hundred seventy-one million, four hundred twenty-four thousand, seven hundred ninety-seven".