980198658 has 20 divisors (see below), whose sum is σ = 2196371430. Its totient is φ = 326732832.

The previous prime is 980198621. The next prime is 980198663. The reversal of 980198658 is 856891089.

It can be written as a sum of positive squares in only one way, i.e., 817559649 + 162639009 = 28593^2 + 12753^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3025143 + ... + 3025466.

Almost surely, 2^980198658 is an apocalyptic number.

980198658 is an abundant number, since it is smaller than the sum of its proper divisors (1216172772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

980198658 is a wasteful number, since it uses less digits than its factorization.

980198658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6050623 (or 6050614 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 54.

The square root of 980198658 is about 31308.1244727307. The cubic root of 980198658 is about 993.3555010843.

The spelling of 980198658 in words is "nine hundred eighty million, one hundred ninety-eight thousand, six hundred fifty-eight".