1980967 has 8 divisors (see below), whose sum is σ = 2116224. Its totient is φ = 1849848.

The previous prime is 1980949. The next prime is 1980983. The reversal of 1980967 is 7690891.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1980967 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980907) 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, 13 + ... + 1990.

It is an arithmetic number, because the mean of its divisors is an integer number (264528).

2^1980967 is an apocalyptic number.

1980967 is a deficient number, since it is larger than the sum of its proper divisors (135257).

1980967 is a wasteful number, since it uses less digits than its factorization.

1980967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2069.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 1980967 is about 1407.4682944919. The cubic root of 1980967 is about 125.5911624747.

The spelling of 1980967 in words is "one million, nine hundred eighty thousand, nine hundred sixty-seven".