978794 has 8 divisors (see below), whose sum is σ = 1515648. Its totient is φ = 473580.

The previous prime is 978773. The next prime is 978797. The reversal of 978794 is 497879.

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

It is a d-powerful number, because it can be written as 9 + 7⁶ + 7⁷ + 8⁵ + 9³ + 4⁶ .

It is not an unprimeable number, because it can be changed into a prime (978797) 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, 7832 + ... + 7955.

It is an arithmetic number, because the mean of its divisors is an integer number (189456).

2⁹⁷⁸⁷⁹⁴ is an apocalyptic number.

978794 is a deficient number, since it is larger than the sum of its proper divisors (536854).

978794 is a wasteful number, since it uses less digits than its factorization.

978794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15820.

The product of its digits is 127008, while the sum is 44.

The square root of 978794 is about 989.3401841632. The cubic root of 978794 is about 99.2880770176.

The spelling of 978794 in words is "nine hundred seventy-eight thousand, seven hundred ninety-four".