797521788 has 120 divisors (see below), whose sum is σ = 2415860832. Its totient is φ = 224695296.

The previous prime is 797521763. The next prime is 797521811. The reversal of 797521788 is 887125797.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 163156 + ... + 167972.

Almost surely, 2^797521788 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 797521788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1207930416).

797521788 is an abundant number, since it is smaller than the sum of its proper divisors (1618339044).

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

797521788 is a wasteful number, since it uses less digits than its factorization.

797521788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4913 (or 4902 counting only the distinct ones).

The product of its digits is 1975680, while the sum is 54.

The square root of 797521788 is about 28240.4282545432. The cubic root of 797521788 is about 927.3582051117.

The spelling of 797521788 in words is "seven hundred ninety-seven million, five hundred twenty-one thousand, seven hundred eighty-eight".