1980017 has 8 divisors (see below), whose sum is σ = 2145024. Its totient is φ = 1816848.

The previous prime is 1979993. The next prime is 1980019. The reversal of 1980017 is 7100891.

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

It is a cyclic number.

It is not a de Polignac number, because 1980017 - 2¹⁰ = 1978993 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (1980019) 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, 2558 + ... + 3240.

It is an arithmetic number, because the mean of its divisors is an integer number (268128).

2^1980017 is an apocalyptic number.

It is an amenable number.

1980017 is a deficient number, since it is larger than the sum of its proper divisors (165007).

1980017 is a wasteful number, since it uses less digits than its factorization.

1980017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919.

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 1980017 is about 1407.1307686210. The cubic root of 1980017 is about 125.5710829409.

The spelling of 1980017 in words is "one million, nine hundred eighty thousand, seventeen".