978479485 has 8 divisors (see below), whose sum is σ = 1176213816. Its totient is φ = 781424640.

The previous prime is 978479483. The next prime is 978479507. The reversal of 978479485 is 584974879.

It can be written as a sum of positive squares in 4 ways, for example, as 689955289 + 288524196 = 26267^2 + 16986^2 .

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

It is not a de Polignac number, because 978479485 - 2¹ = 978479483 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 (978479483) 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 in 7 ways as a sum of consecutive naturals, for example, 166696 + ... + 172465.

It is an arithmetic number, because the mean of its divisors is an integer number (147026727).

Almost surely, 2^978479485 is an apocalyptic number.

It is an amenable number.

978479485 is a deficient number, since it is larger than the sum of its proper divisors (197734331).

978479485 is a wasteful number, since it uses less digits than its factorization.

978479485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339743.

The product of its digits is 20321280, while the sum is 61.

The square root of 978479485 is about 31280.6567226457. The cubic root of 978479485 is about 992.7744116198.

It can be divided in two parts, 9784794 and 85, that added together give a palindrome (9784879).

The spelling of 978479485 in words is "nine hundred seventy-eight million, four hundred seventy-nine thousand, four hundred eighty-five".