1982717 has 4 divisors (see below), whose sum is σ = 2162976. Its totient is φ = 1802460.

The previous prime is 1982713. The next prime is 1982723. The reversal of 1982717 is 7172891.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7172891 = 11 ⋅652081.

It is not a de Polignac number, because 1982717 - 2² = 1982713 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90113 + ... + 90134.

It is an arithmetic number, because the mean of its divisors is an integer number (540744).

2^1982717 is an apocalyptic number.

It is an amenable number.

1982717 is a deficient number, since it is larger than the sum of its proper divisors (180259).

1982717 is a wasteful number, since it uses less digits than its factorization.

1982717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180258.

The product of its digits is 7056, while the sum is 35.

The square root of 1982717 is about 1408.0898408837. The cubic root of 1982717 is about 125.6281342914.

The spelling of 1982717 in words is "one million, nine hundred eighty-two thousand, seven hundred seventeen".