978386 has 8 divisors (see below), whose sum is σ = 1544880. Its totient is φ = 463428.

The previous prime is 978359. The next prime is 978389. The reversal of 978386 is 683879.

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

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (978389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12836 + ... + 12911.

It is an arithmetic number, because the mean of its divisors is an integer number (193110).

2⁹⁷⁸³⁸⁶ is an apocalyptic number.

978386 is a deficient number, since it is larger than the sum of its proper divisors (566494).

978386 is a wasteful number, since it uses less digits than its factorization.

978386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25768.

The product of its digits is 72576, while the sum is 41.

The square root of 978386 is about 989.1339646378. The cubic root of 978386 is about 99.2742793695.

The spelling of 978386 in words is "nine hundred seventy-eight thousand, three hundred eighty-six".