1980297 has 24 divisors (see below), whose sum is σ = 3171168. Its totient is φ = 1180800.

The previous prime is 1980289. The next prime is 1980301. The reversal of 1980297 is 7920891.

It is a happy number.

It is not a de Polignac number, because 1980297 - 2³ = 1980289 is a prime.

1980297 is a modest number, since divided by 297 gives 198 as remainder.

It is not an unprimeable number, because it can be changed into a prime (1980227) 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, 8097 + ... + 8337.

It is an arithmetic number, because the mean of its divisors is an integer number (132132).

2^1980297 is an apocalyptic number.

It is an amenable number.

1980297 is a deficient number, since it is larger than the sum of its proper divisors (1190871).

1980297 is a wasteful number, since it uses less digits than its factorization.

1980297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 1980297 is about 1407.2302583444. The cubic root of 1980297 is about 125.5770017867.

The spelling of 1980297 in words is "one million, nine hundred eighty thousand, two hundred ninety-seven".