978473 has 2 divisors, whose sum is σ = 978474. Its totient is φ = 978472.

The previous prime is 978463. The next prime is 978479. The reversal of 978473 is 374879.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 760384 + 218089 = 872^2 + 467^2 .

It is an emirp because it is prime and its reverse (374879) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 978473 - 2⁴ = 978457 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 978473.

It is not a weakly prime, because it can be changed into another prime (978479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489236 + 489237.

It is an arithmetic number, because the mean of its divisors is an integer number (489237).

2⁹⁷⁸⁴⁷³ is an apocalyptic number.

It is an amenable number.

978473 is a deficient number, since it is larger than the sum of its proper divisors (1).

978473 is an equidigital number, since it uses as much as digits as its factorization.

978473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 38.

The square root of 978473 is about 989.1779415252. The cubic root of 978473 is about 99.2772218368.

The spelling of 978473 in words is "nine hundred seventy-eight thousand, four hundred seventy-three".