978049 has 2 divisors, whose sum is σ = 978050. Its totient is φ = 978048.

The previous prime is 978041. The next prime is 978053. The reversal of 978049 is 940879.

It is a happy number.

978049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 535824 + 442225 = 732^2 + 665^2 .

It is an emirp because it is prime and its reverse (940879) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 978049 - 2³ = 978041 is a prime.

978049 is a lucky number.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 977999 and 978017.

It is not a weakly prime, because it can be changed into another prime (978041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489024 + 489025.

It is an arithmetic number, because the mean of its divisors is an integer number (489025).

2⁹⁷⁸⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

978049 is a deficient number, since it is larger than the sum of its proper divisors (1).

978049 is an equidigital number, since it uses as much as digits as its factorization.

978049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 978049 is about 988.9635989257. The cubic root of 978049 is about 99.2628798898.

The spelling of 978049 in words is "nine hundred seventy-eight thousand, forty-nine".