978049829 has 2 divisors, whose sum is σ = 978049830. Its totient is φ = 978049828.

The previous prime is 978049817. The next prime is 978049847. The reversal of 978049829 is 928940879.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 675220225 + 302829604 = 25985^2 + 17402^2 .

It is a cyclic number.

It is not a de Polignac number, because 978049829 - 2⁸ = 978049573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (978049889) 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, 489024914 + 489024915.

It is an arithmetic number, because the mean of its divisors is an integer number (489024915).

Almost surely, 2^978049829 is an apocalyptic number.

It is an amenable number.

978049829 is a deficient number, since it is larger than the sum of its proper divisors (1).

978049829 is an equidigital number, since it uses as much as digits as its factorization.

978049829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2612736, while the sum is 56.

The square root of 978049829 is about 31273.7882099371. The cubic root of 978049829 is about 992.6290793506.

The spelling of 978049829 in words is "nine hundred seventy-eight million, forty-nine thousand, eight hundred twenty-nine".