981502628 has 6 divisors (see below), whose sum is σ = 1717629606. Its totient is φ = 490751312.

The previous prime is 981502603. The next prime is 981502637. The reversal of 981502628 is 826205189.

It can be written as a sum of positive squares in only one way, i.e., 966463744 + 15038884 = 31088^2 + 3878^2 .

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 as a sum of consecutive naturals, namely, 122687825 + ... + 122687832.

It is an arithmetic number, because the mean of its divisors is an integer number (286271601).

Almost surely, 2^981502628 is an apocalyptic number.

It is an amenable number.

981502628 is a deficient number, since it is larger than the sum of its proper divisors (736126978).

981502628 is a wasteful number, since it uses less digits than its factorization.

981502628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245375661 (or 245375659 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 981502628 is about 31328.9423377171. The cubic root of 981502628 is about 993.7957968003.

The spelling of 981502628 in words is "nine hundred eighty-one million, five hundred two thousand, six hundred twenty-eight".