978541297 has 2 divisors, whose sum is σ = 978541298. Its totient is φ = 978541296.

The previous prime is 978541271. The next prime is 978541313. The reversal of 978541297 is 792145879.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 977875441 + 665856 = 31271^2 + 816^2 .

It is a cyclic number.

It is not a de Polignac number, because 978541297 - 2²⁷ = 844323569 is a prime.

It is not a weakly prime, because it can be changed into another prime (978545297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489270648 + 489270649.

It is an arithmetic number, because the mean of its divisors is an integer number (489270649).

Almost surely, 2^978541297 is an apocalyptic number.

It is an amenable number.

978541297 is a deficient number, since it is larger than the sum of its proper divisors (1).

978541297 is an equidigital number, since it uses as much as digits as its factorization.

978541297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 52.

The square root of 978541297 is about 31281.6447297772. The cubic root of 978541297 is about 992.7953161902.

The spelling of 978541297 in words is "nine hundred seventy-eight million, five hundred forty-one thousand, two hundred ninety-seven".