797850901 has 4 divisors (see below), whose sum is σ = 797913792. Its totient is φ = 797788012.

The previous prime is 797850839. The next prime is 797850971. The reversal of 797850901 is 109058797.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 797850901 - 2⁷ = 797850773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (797850971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5005 + ... + 40258.

It is an arithmetic number, because the mean of its divisors is an integer number (199478448).

Almost surely, 2^797850901 is an apocalyptic number.

797850901 is the 17865-th centered pentagonal number.

It is an amenable number.

797850901 is a deficient number, since it is larger than the sum of its proper divisors (62891).

797850901 is a wasteful number, since it uses less digits than its factorization.

797850901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62890.

The product of its (nonzero) digits is 158760, while the sum is 46.

The square root of 797850901 is about 28246.2546366771. The cubic root of 797850901 is about 927.4857517494.

The spelling of 797850901 in words is "seven hundred ninety-seven million, eight hundred fifty thousand, nine hundred one".