797137020 has 144 divisors (see below), whose sum is σ = 2587646880. Its totient is φ = 198028800.

The previous prime is 797137009. The next prime is 797137043. The reversal of 797137020 is 20731797.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 206710 + ... + 210530.

It is an arithmetic number, because the mean of its divisors is an integer number (17969770).

Almost surely, 2^797137020 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 797137020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1293823440).

797137020 is an abundant number, since it is smaller than the sum of its proper divisors (1790509860).

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

797137020 is a wasteful number, since it uses less digits than its factorization.

797137020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3916 (or 3911 counting only the distinct ones).

The product of its (nonzero) digits is 18522, while the sum is 36.

The square root of 797137020 is about 28233.6150714003. The cubic root of 797137020 is about 927.2090450656.

The spelling of 797137020 in words is "seven hundred ninety-seven million, one hundred thirty-seven thousand, twenty".