981147498 has 16 divisors (see below), whose sum is σ = 2065573920. Its totient is φ = 309836016.

The previous prime is 981147491. The next prime is 981147499. The reversal of 981147498 is 894741189.

It is a super-3 number, since 3×981147498³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 981147498.

It is not an unprimeable number, because it can be changed into a prime (981147491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4303165 + ... + 4303392.

It is an arithmetic number, because the mean of its divisors is an integer number (129098370).

Almost surely, 2^981147498 is an apocalyptic number.

981147498 is an abundant number, since it is smaller than the sum of its proper divisors (1084426422).

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

981147498 is a wasteful number, since it uses less digits than its factorization.

981147498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8606581.

The product of its digits is 580608, while the sum is 51.

The square root of 981147498 is about 31323.2740625880. The cubic root of 981147498 is about 993.6759230254.

The spelling of 981147498 in words is "nine hundred eighty-one million, one hundred forty-seven thousand, four hundred ninety-eight".