981886449 has 8 divisors (see below), whose sum is σ = 1310092480. Its totient is φ = 654135696.

The previous prime is 981886441. The next prime is 981886481. The reversal of 981886449 is 944688189.

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

It is not a de Polignac number, because 981886449 - 2³ = 981886441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (981886441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108754 + ... + 117435.

It is an arithmetic number, because the mean of its divisors is an integer number (163761560).

Almost surely, 2^981886449 is an apocalyptic number.

It is an amenable number.

981886449 is a deficient number, since it is larger than the sum of its proper divisors (328206031).

981886449 is a wasteful number, since it uses less digits than its factorization.

981886449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227639.

The product of its digits is 3981312, while the sum is 57.

The square root of 981886449 is about 31335.0674005977. The cubic root of 981886449 is about 993.9253226842.

The spelling of 981886449 in words is "nine hundred eighty-one million, eight hundred eighty-six thousand, four hundred forty-nine".