1980737 has 8 divisors (see below), whose sum is σ = 2255040. Its totient is φ = 1722160.

The previous prime is 1980707. The next prime is 1980743. The reversal of 1980737 is 7370891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1980737 - 2⁶ = 1980673 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1980697 and 1980706.

It is not an unprimeable number, because it can be changed into a prime (1980707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3662 + ... + 4167.

It is an arithmetic number, because the mean of its divisors is an integer number (281880).

2^1980737 is an apocalyptic number.

It is an amenable number.

1980737 is a deficient number, since it is larger than the sum of its proper divisors (274303).

1980737 is a wasteful number, since it uses less digits than its factorization.

1980737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7863.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 1980737 is about 1407.3865851286. The cubic root of 1980737 is about 125.5863017030.

The spelling of 1980737 in words is "one million, nine hundred eighty thousand, seven hundred thirty-seven".