978275 has 12 divisors (see below), whose sum is σ = 1227600. Its totient is φ = 773280.

The previous prime is 978269. The next prime is 978277. The reversal of 978275 is 572879.

It is not a de Polignac number, because 978275 - 2¹² = 974179 is a prime.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (978277) 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 11 ways as a sum of consecutive naturals, for example, 2546 + ... + 2904.

It is an arithmetic number, because the mean of its divisors is an integer number (102300).

2⁹⁷⁸²⁷⁵ is an apocalyptic number.

978275 is a deficient number, since it is larger than the sum of its proper divisors (249325).

978275 is a wasteful number, since it uses less digits than its factorization.

978275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478 (or 473 counting only the distinct ones).

The product of its digits is 35280, while the sum is 38.

The square root of 978275 is about 989.0778533563. The cubic root of 978275 is about 99.2705249339.

The spelling of 978275 in words is "nine hundred seventy-eight thousand, two hundred seventy-five".