1973980 has 24 divisors (see below), whose sum is σ = 4173120. Its totient is φ = 784320.

The previous prime is 1973977. The next prime is 1973999. The reversal of 1973980 is 893791.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4365 + ... + 4795.

It is an arithmetic number, because the mean of its divisors is an integer number (173880).

2^1973980 is an apocalyptic number.

1973980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1973980 is an abundant number, since it is smaller than the sum of its proper divisors (2199140).

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

1973980 is a wasteful number, since it uses less digits than its factorization.

1973980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669 (or 667 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 1973980 is about 1404.9839856739. The cubic root of 1973980 is about 125.4433324585.

The spelling of 1973980 in words is "one million, nine hundred seventy-three thousand, nine hundred eighty".