978479507 has 2 divisors, whose sum is σ = 978479508. Its totient is φ = 978479506.

The previous prime is 978479483. The next prime is 978479531. The reversal of 978479507 is 705974879.

978479507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (978479483) and next prime (978479531).

It is a cyclic number.

It is not a de Polignac number, because 978479507 - 2¹⁰ = 978478483 is a prime.

It is not a weakly prime, because it can be changed into another prime (978479597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489239753 + 489239754.

It is an arithmetic number, because the mean of its divisors is an integer number (489239754).

Almost surely, 2^978479507 is an apocalyptic number.

978479507 is a deficient number, since it is larger than the sum of its proper divisors (1).

978479507 is an equidigital number, since it uses as much as digits as its factorization.

978479507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4445280, while the sum is 56.

The square root of 978479507 is about 31280.6570743007. The cubic root of 978479507 is about 992.7744190602.

The spelling of 978479507 in words is "nine hundred seventy-eight million, four hundred seventy-nine thousand, five hundred seven".