981333602 has 18 divisors (see below), whose sum is σ = 1564883073. Its totient is φ = 461449632.

The previous prime is 981333601. The next prime is 981333631. The reversal of 981333602 is 206333189.

It can be written as a sum of positive squares in 2 ways, for example, as 898140961 + 83192641 = 29969^2 + 9121^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=22151.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (981333601) 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 8 ways as a sum of consecutive naturals, for example, 752483 + ... + 753785.

Almost surely, 2^981333602 is an apocalyptic number.

981333602 is a deficient number, since it is larger than the sum of its proper divisors (583549471).

981333602 is an equidigital number, since it uses as much as digits as its factorization.

981333602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2642 (or 1322 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 981333602 is about 31326.2446201264. The cubic root of 981333602 is about 993.7387458504.

Multiplying 981333602 by its product of nonzero digits (23328), we get a square (22892550267456 = 4784616²).

The spelling of 981333602 in words is "nine hundred eighty-one million, three hundred thirty-three thousand, six hundred two".