797720194 has 8 divisors (see below), whose sum is σ = 1198534140. Its totient is φ = 398208816.

The previous prime is 797720171. The next prime is 797720233. The reversal of 797720194 is 491027797.

797720194 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 773562969 + 24157225 = 27813^2 + 4915^2 .

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

It is a super-3 number, since 3×797720194³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324109 + ... + 326560.

Almost surely, 2^797720194 is an apocalyptic number.

797720194 is a deficient number, since it is larger than the sum of its proper divisors (400813946).

797720194 is a wasteful number, since it uses less digits than its factorization.

797720194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651284.

The product of its (nonzero) digits is 222264, while the sum is 46.

The square root of 797720194 is about 28243.9408369300. The cubic root of 797720194 is about 927.4351008903.

The spelling of 797720194 in words is "seven hundred ninety-seven million, seven hundred twenty thousand, one hundred ninety-four".