978262879 has 8 divisors (see below), whose sum is σ = 1069298640. Its totient is φ = 887577600.

The previous prime is 978262847. The next prime is 978262891.

978262879 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 978262879 - 2⁵ = 978262847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978262819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81762 + ... + 92959.

It is an arithmetic number, because the mean of its divisors is an integer number (133662330).

Almost surely, 2^978262879 is an apocalyptic number.

978262879 is a deficient number, since it is larger than the sum of its proper divisors (91035761).

978262879 is a wasteful number, since it uses less digits than its factorization.

978262879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175241.

The product of its digits is 6096384, while the sum is 58.

The square root of 978262879 is about 31277.1942315803. The cubic root of 978262879 is about 992.7011493909.

The spelling of 978262879 in words is "nine hundred seventy-eight million, two hundred sixty-two thousand, eight hundred seventy-nine".