1980706 has 16 divisors (see below), whose sum is σ = 3657024. Its totient is φ = 783504.

The previous prime is 1980703. The next prime is 1980707. The reversal of 1980706 is 6070891.

It is not an unprimeable number, because it can be changed into a prime (1980701) 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, 5260 + ... + 5623.

It is an arithmetic number, because the mean of its divisors is an integer number (228564).

2^1980706 is an apocalyptic number.

1980706 is a deficient number, since it is larger than the sum of its proper divisors (1676318).

1980706 is a wasteful number, since it uses less digits than its factorization.

1980706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10905.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 1980706 is about 1407.3755717647. The cubic root of 1980706 is about 125.5856465267.

The spelling of 1980706 in words is "one million, nine hundred eighty thousand, seven hundred six".