981481672 has 32 divisors (see below), whose sum is σ = 1952991000. Its totient is φ = 460816384.

The previous prime is 981481667. The next prime is 981481673. The reversal of 981481672 is 276184189.

It can be written as a sum of positive squares in 4 ways, for example, as 858138436 + 123343236 = 29294^2 + 11106^2 .

It is not an unprimeable number, because it can be changed into a prime (981481673) by changing a digit.

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, 53028 + ... + 69100.

Almost surely, 2^981481672 is an apocalyptic number.

It is an amenable number.

981481672 is a deficient number, since it is larger than the sum of its proper divisors (971509328).

981481672 is a wasteful number, since it uses less digits than its factorization.

981481672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16545 (or 16541 counting only the distinct ones).

The product of its digits is 193536, while the sum is 46.

The square root of 981481672 is about 31328.6078848071. The cubic root of 981481672 is about 993.7887239264.

It can be divided in two parts, 981 and 481672, that added together give a triangular number (482653 = T₉₈₂).

The spelling of 981481672 in words is "nine hundred eighty-one million, four hundred eighty-one thousand, six hundred seventy-two".