797271553 has 8 divisors (see below), whose sum is σ = 858950568. Its totient is φ = 735642624.

The previous prime is 797271551. The next prime is 797271577. The reversal of 797271553 is 355172797.

It can be written as a sum of positive squares in 4 ways, for example, as 284158449 + 513113104 = 16857^2 + 22652^2 .

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 797271553 - 2¹ = 797271551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (797271551) 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, 24651 + ... + 46927.

It is an arithmetic number, because the mean of its divisors is an integer number (107368821).

Almost surely, 2^797271553 is an apocalyptic number.

It is an amenable number.

797271553 is a deficient number, since it is larger than the sum of its proper divisors (61679015).

797271553 is a wasteful number, since it uses less digits than its factorization.

797271553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25043.

The product of its digits is 463050, while the sum is 46.

The square root of 797271553 is about 28235.9974677715. The cubic root of 797271553 is about 927.2612038934.

The spelling of 797271553 in words is "seven hundred ninety-seven million, two hundred seventy-one thousand, five hundred fifty-three".