978273 has 12 divisors (see below), whose sum is σ = 1433380. Its totient is φ = 642816.

The previous prime is 978269. The next prime is 978277. The reversal of 978273 is 372879.

It is an interprime number because it is at equal distance from previous prime (978269) and next prime (978277).

It can be written as a sum of positive squares in 2 ways, for example, as 374544 + 603729 = 612^2 + 777^2 .

It is not a de Polignac number, because 978273 - 2² = 978269 is a prime.

It is a Duffinian number.

978273 is a lucky number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978277) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88 + ... + 1401.

2⁹⁷⁸²⁷³ is an apocalyptic number.

It is an amenable number.

978273 is a deficient number, since it is larger than the sum of its proper divisors (455107).

978273 is a wasteful number, since it uses less digits than its factorization.

978273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568 (or 1565 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 978273 is about 989.0768423131. The cubic root of 978273 is about 99.2704572838.

The spelling of 978273 in words is "nine hundred seventy-eight thousand, two hundred seventy-three".