7794417797 has 4 divisors (see below), whose sum is σ = 7796740236. Its totient is φ = 7792095360.

The previous prime is 7794417793. The next prime is 7794417877. The reversal of 7794417797 is 7977144977.

It is a happy number.

It is a Cunningham number, because it is equal to 88286²+1.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5847049156 + 1947368641 = 76466^2 + 44129^2 .

It is a cyclic number.

It is not a de Polignac number, because 7794417797 - 2² = 7794417793 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 (7794417793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1156178 + ... + 1162899.

It is an arithmetic number, because the mean of its divisors is an integer number (1949185059).

Almost surely, 2^7794417797 is an apocalyptic number.

It is an amenable number.

7794417797 is a deficient number, since it is larger than the sum of its proper divisors (2322439).

7794417797 is a wasteful number, since it uses less digits than its factorization.

7794417797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2322438.

The product of its digits is 21781872, while the sum is 62.

The square root of 7794417797 is about 88286.0000056634. Note that the first 5 decimals coincide. The cubic root of 7794417797 is about 1982.7192679360.

The spelling of 7794417797 in words is "seven billion, seven hundred ninety-four million, four hundred seventeen thousand, seven hundred ninety-seven".