797729242 has 4 divisors (see below), whose sum is σ = 1196593866. Its totient is φ = 398864620.

The previous prime is 797729237. The next prime is 797729243. The reversal of 797729242 is 242927797.

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

It can be written as a sum of positive squares in only one way, i.e., 431351361 + 366377881 = 20769^2 + 19141^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (797729243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199432309 + ... + 199432312.

Almost surely, 2^797729242 is an apocalyptic number.

797729242 is a deficient number, since it is larger than the sum of its proper divisors (398864624).

797729242 is a wasteful number, since it uses less digits than its factorization.

797729242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398864623.

The product of its digits is 889056, while the sum is 49.

The square root of 797729242 is about 28244.1010124238. The cubic root of 797729242 is about 927.4386072998.

The spelling of 797729242 in words is "seven hundred ninety-seven million, seven hundred twenty-nine thousand, two hundred forty-two".