797979796 has 24 divisors (see below), whose sum is σ = 1502856936. Its totient is φ = 369361920.

The previous prime is 797979769. The next prime is 797979799. The reversal of 797979796 is 697979797.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 73616400 + 724363396 = 8580^2 + 26914^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (797979799) 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 7 ways as a sum of consecutive naturals, for example, 92041 + ... + 100336.

It is an arithmetic number, because the mean of its divisors is an integer number (62619039).

Almost surely, 2^797979796 is an apocalyptic number.

It is an amenable number.

797979796 is a deficient number, since it is larger than the sum of its proper divisors (704877140).

797979796 is a wasteful number, since it uses less digits than its factorization.

797979796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192459 (or 192457 counting only the distinct ones).

The product of its digits is 94517766, while the sum is 70.

The square root of 797979796 is about 28248.5361744640. The cubic root of 797979796 is about 927.5356950152.

Subtracting from 797979796 its reverse (697979797), we obtain a palindrome (99999999).

It can be divided in two parts, 79797979 and 6, that multiplied together give a palindrome (478787874).

The spelling of 797979796 in words is "seven hundred ninety-seven million, nine hundred seventy-nine thousand, seven hundred ninety-six".