797778652 has 36 divisors (see below), whose sum is σ = 1624855680. Its totient is φ = 341292160.

The previous prime is 797778647. The next prime is 797778691. The reversal of 797778652 is 256877797.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40252 + ... + 56707.

It is an arithmetic number, because the mean of its divisors is an integer number (45134880).

Almost surely, 2^797778652 is an apocalyptic number.

It is an amenable number.

797778652 is an abundant number, since it is smaller than the sum of its proper divisors (827077028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

797778652 is a wasteful number, since it uses less digits than its factorization.

797778652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97002 (or 96989 counting only the distinct ones).

The product of its digits is 10372320, while the sum is 58.

The square root of 797778652 is about 28244.9756948028. The cubic root of 797778652 is about 927.4577548974.

The spelling of 797778652 in words is "seven hundred ninety-seven million, seven hundred seventy-eight thousand, six hundred fifty-two".