797826901 has 4 divisors (see below), whose sum is σ = 798813900. Its totient is φ = 796839904.

The previous prime is 797826871. The next prime is 797826919. The reversal of 797826901 is 109628797.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 294946276 + 502880625 = 17174^2 + 22425^2 .

It is a cyclic number.

It is not a de Polignac number, because 797826901 - 2²⁵ = 764272469 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 (797826961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 492286 + ... + 493903.

It is an arithmetic number, because the mean of its divisors is an integer number (199703475).

Almost surely, 2^797826901 is an apocalyptic number.

It is an amenable number.

797826901 is a deficient number, since it is larger than the sum of its proper divisors (986999).

797826901 is an equidigital number, since it uses as much as digits as its factorization.

797826901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986998.

The product of its (nonzero) digits is 381024, while the sum is 49.

The square root of 797826901 is about 28245.8297983968. The cubic root of 797826901 is about 927.4764518158.

The spelling of 797826901 in words is "seven hundred ninety-seven million, eight hundred twenty-six thousand, nine hundred one".