7924221797 has 8 divisors (see below), whose sum is σ = 7941360000. Its totient is φ = 7907103360.

The previous prime is 7924221787. The next prime is 7924221817. The reversal of 7924221797 is 7971224297.

It is a happy number.

7924221797 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7924221797 - 2⁸ = 7924221541 is a prime.

It is a super-3 number, since 3×7924221797³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7924221727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1009028 + ... + 1016850.

It is an arithmetic number, because the mean of its divisors is an integer number (992670000).

Almost surely, 2^7924221797 is an apocalyptic number.

It is an amenable number.

7924221797 is a deficient number, since it is larger than the sum of its proper divisors (17138203).

7924221797 is a wasteful number, since it uses less digits than its factorization.

7924221797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9883.

The product of its digits is 889056, while the sum is 50.

The square root of 7924221797 is about 89018.0981430181. The cubic root of 7924221797 is about 1993.6651054912.

The spelling of 7924221797 in words is "seven billion, nine hundred twenty-four million, two hundred twenty-one thousand, seven hundred ninety-seven".