981558752 has 24 divisors (see below), whose sum is σ = 1933157016. Its totient is φ = 490598272.

The previous prime is 981558731. The next prime is 981558757. The reversal of 981558752 is 257855189.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 981558752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981558757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140363 + ... + 147189.

It is an arithmetic number, because the mean of its divisors is an integer number (80548209).

Almost surely, 2^981558752 is an apocalyptic number.

It is an amenable number.

981558752 is a deficient number, since it is larger than the sum of its proper divisors (951598264).

981558752 is a wasteful number, since it uses less digits than its factorization.

981558752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11330 (or 11322 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 50.

The square root of 981558752 is about 31329.8380461821. The cubic root of 981558752 is about 993.8147387541.

The spelling of 981558752 in words is "nine hundred eighty-one million, five hundred fifty-eight thousand, seven hundred fifty-two".