797864 has 8 divisors (see below), whose sum is σ = 1496010. Its totient is φ = 398928.

The previous prime is 797851. The next prime is 797869. The reversal of 797864 is 468797.

It can be written as a sum of positive squares in only one way, i.e., 504100 + 293764 = 710^2 + 542^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (797869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49859 + ... + 49874.

2⁷⁹⁷⁸⁶⁴ is an apocalyptic number.

It is an amenable number.

797864 is a deficient number, since it is larger than the sum of its proper divisors (698146).

797864 is a wasteful number, since it uses less digits than its factorization.

797864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99739 (or 99735 counting only the distinct ones).

The product of its digits is 84672, while the sum is 41.

The square root of 797864 is about 893.2323325989. The cubic root of 797864 is about 92.7490827497.

It can be divided in two parts, 797 and 864, that added together give a palindrome (1661).

The spelling of 797864 in words is "seven hundred ninety-seven thousand, eight hundred sixty-four".