980790578 has 4 divisors (see below), whose sum is σ = 1471185870. Its totient is φ = 490395288.

The previous prime is 980790529. The next prime is 980790607. The reversal of 980790578 is 875097089.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 875097089 = 47 ⋅18619087.

It can be written as a sum of positive squares in only one way, i.e., 759167809 + 221622769 = 27553^2 + 14887^2 .

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 as a sum of consecutive naturals, namely, 245197643 + ... + 245197646.

Almost surely, 2^980790578 is an apocalyptic number.

980790578 is a deficient number, since it is larger than the sum of its proper divisors (490395292).

980790578 is a wasteful number, since it uses less digits than its factorization.

980790578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490395291.

The product of its (nonzero) digits is 1270080, while the sum is 53.

The square root of 980790578 is about 31317.5761833511. The cubic root of 980790578 is about 993.5554158892. Note that the first 3 decimals are identical.

The spelling of 980790578 in words is "nine hundred eighty million, seven hundred ninety thousand, five hundred seventy-eight".