1982807 has 4 divisors (see below), whose sum is σ = 2069040. Its totient is φ = 1896576.

The previous prime is 1982803. The next prime is 1982809. The reversal of 1982807 is 7082891.

It is a happy number.

1982807 is an esthetic number in base 13, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7082891 = 59 ⋅120049.

It is a cyclic number.

It is not a de Polignac number, because 1982807 - 2² = 1982803 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 (1982803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43082 + ... + 43127.

It is an arithmetic number, because the mean of its divisors is an integer number (517260).

2^1982807 is an apocalyptic number.

1982807 is a deficient number, since it is larger than the sum of its proper divisors (86233).

1982807 is an equidigital number, since it uses as much as digits as its factorization.

1982807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86232.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 1982807 is about 1408.1217987092. The cubic root of 1982807 is about 125.6300351108.

The spelling of 1982807 in words is "one million, nine hundred eighty-two thousand, eight hundred seven".