2097831720 has 64 divisors (see below), whose sum is σ = 6343096320. Its totient is φ = 555012864.

The previous prime is 2097831713. The next prime is 2097831737. The reversal of 2097831720 is 271387902.

2097831720 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53587 + ... + 84066.

It is an arithmetic number, because the mean of its divisors is an integer number (99110880).

Almost surely, 2^2097831720 is an apocalyptic number.

2097831720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2097831720 is an abundant number, since it is smaller than the sum of its proper divisors (4245264600).

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

2097831720 is a wasteful number, since it uses less digits than its factorization.

2097831720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137794 (or 137790 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 2097831720 is about 45802.0929652783. The cubic root of 2097831720 is about 1280.1382744501.

The spelling of 2097831720 in words is "two billion, ninety-seven million, eight hundred thirty-one thousand, seven hundred twenty".