1982678 has 8 divisors (see below), whose sum is σ = 3046680. Its totient is φ = 967120.

The previous prime is 1982671. The next prime is 1982681. The reversal of 1982678 is 8762891.

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

It is a super-3 number, since 3×1982678³ = 23381793337826189256, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982671) 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, 12008 + ... + 12171.

It is an arithmetic number, because the mean of its divisors is an integer number (380835).

2^1982678 is an apocalyptic number.

1982678 is a deficient number, since it is larger than the sum of its proper divisors (1064002).

1982678 is a wasteful number, since it uses less digits than its factorization.

1982678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24222.

The product of its digits is 48384, while the sum is 41.

The square root of 1982678 is about 1408.0759922675. The cubic root of 1982678 is about 125.6273105851.

The spelling of 1982678 in words is "one million, nine hundred eighty-two thousand, six hundred seventy-eight".