2100497847 has 24 divisors (see below), whose sum is σ = 3288387456. Its totient is φ = 1189057968.

The previous prime is 2100497813. The next prime is 2100497891. The reversal of 2100497847 is 7487940012.

It is a happy number.

It is not a de Polignac number, because 2100497847 - 2¹⁰ = 2100496823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2100497799 and 2100497808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100497897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51043 + ... + 82500.

It is an arithmetic number, because the mean of its divisors is an integer number (137016144).

Almost surely, 2^2100497847 is an apocalyptic number.

2100497847 is a deficient number, since it is larger than the sum of its proper divisors (1187889609).

2100497847 is a wasteful number, since it uses less digits than its factorization.

2100497847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133667 (or 133660 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 2100497847 is about 45831.1885837581. The cubic root of 2100497847 is about 1280.6803526259.

The spelling of 2100497847 in words is "two billion, one hundred million, four hundred ninety-seven thousand, eight hundred forty-seven".