2097685980 has 72 divisors (see below), whose sum is σ = 6852448512. Its totient is φ = 516352896.

The previous prime is 2097685969. The next prime is 2097685987. The reversal of 2097685980 is 895867902.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2097685987) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 445884 + ... + 450563.

It is an arithmetic number, because the mean of its divisors is an integer number (95172896).

Almost surely, 2^2097685980 is an apocalyptic number.

2097685980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2097685980 is an abundant number, since it is smaller than the sum of its proper divisors (4754762532).

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

2097685980 is a wasteful number, since it uses less digits than its factorization.

2097685980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896475 (or 896470 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The square root of 2097685980 is about 45800.5019623148. The cubic root of 2097685980 is about 1280.1086292899.

The spelling of 2097685980 in words is "two billion, ninety-seven million, six hundred eighty-five thousand, nine hundred eighty".