978245570 has 16 divisors (see below), whose sum is σ = 1776998520. Its totient is φ = 387707904.

The previous prime is 978245563. The next prime is 978245599. The reversal of 978245570 is 75542879.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 551451289 + 426794281 = 23483^2 + 20659^2 .

It is an unprimeable number.

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, 447647 + ... + 449826.

Almost surely, 2^978245570 is an apocalyptic number.

978245570 is a deficient number, since it is larger than the sum of its proper divisors (798752950).

978245570 is a wasteful number, since it uses less digits than its factorization.

978245570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897589.

The product of its (nonzero) digits is 705600, while the sum is 47.

The square root of 978245570 is about 31276.9175271477. The cubic root of 978245570 is about 992.6952945346.

The spelling of 978245570 in words is "nine hundred seventy-eight million, two hundred forty-five thousand, five hundred seventy".