978933 has 8 divisors (see below), whose sum is σ = 1314496. Its totient is φ = 648000.

The previous prime is 978931. The next prime is 978947. The reversal of 978933 is 339879.

It is a happy number.

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

It is not a de Polignac number, because 978933 - 2¹ = 978931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 978891 and 978900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978931) 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, 628 + ... + 1533.

It is an arithmetic number, because the mean of its divisors is an integer number (164312).

2⁹⁷⁸⁹³³ is an apocalyptic number.

It is an amenable number.

978933 is a deficient number, since it is larger than the sum of its proper divisors (335563).

978933 is a wasteful number, since it uses less digits than its factorization.

978933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2315.

The product of its digits is 40824, while the sum is 39.

The square root of 978933 is about 989.4104305090. The cubic root of 978933 is about 99.2927768112.

The spelling of 978933 in words is "nine hundred seventy-eight thousand, nine hundred thirty-three".