978353 has 4 divisors (see below), whose sum is σ = 982260. Its totient is φ = 974448.

The previous prime is 978349. The next prime is 978359. The reversal of 978353 is 353879.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43264 + 935089 = 208^2 + 967^2 .

It is a cyclic number.

It is not a de Polignac number, because 978353 - 2² = 978349 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (978359) 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, 1550 + ... + 2087.

It is an arithmetic number, because the mean of its divisors is an integer number (245565).

2⁹⁷⁸³⁵³ is an apocalyptic number.

It is an amenable number.

978353 is a deficient number, since it is larger than the sum of its proper divisors (3907).

978353 is a wasteful number, since it uses less digits than its factorization.

978353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3906.

The product of its digits is 22680, while the sum is 35.

The square root of 978353 is about 989.1172832379. The cubic root of 978353 is about 99.2731632156.

It can be divided in two parts, 978 and 353, that added together give a palindrome (1331).

The spelling of 978353 in words is "nine hundred seventy-eight thousand, three hundred fifty-three".