981617412 has 24 divisors (see below), whose sum is σ = 2295400576. Its totient is φ = 326497248.

The previous prime is 981617407. The next prime is 981617443. The reversal of 981617412 is 214716189.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82783 + ... + 93894.

Almost surely, 2^981617412 is an apocalyptic number.

It is an amenable number.

981617412 is an abundant number, since it is smaller than the sum of its proper divisors (1313783164).

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

981617412 is a wasteful number, since it uses less digits than its factorization.

981617412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177147 (or 177145 counting only the distinct ones).

The product of its digits is 24192, while the sum is 39.

The square root of 981617412 is about 31330.7742004566. The cubic root of 981617412 is about 993.8345358409.

The spelling of 981617412 in words is "nine hundred eighty-one million, six hundred seventeen thousand, four hundred twelve".