981960500 has 24 divisors (see below), whose sum is σ = 2144602824. Its totient is φ = 392784000.

The previous prime is 981960479. The next prime is 981960517. The reversal of 981960500 is 5069189.

981960500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 291111844 + 690848656 = 17062^2 + 26284^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 981461 + ... + 982460.

It is an arithmetic number, because the mean of its divisors is an integer number (89358451).

Almost surely, 2^981960500 is an apocalyptic number.

It is an amenable number.

981960500 is an abundant number, since it is smaller than the sum of its proper divisors (1162642324).

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

981960500 is a wasteful number, since it uses less digits than its factorization.

981960500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963940 (or 1963928 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 981960500 is about 31336.2489778212. The cubic root of 981960500 is about 993.9503083682.

The spelling of 981960500 in words is "nine hundred eighty-one million, nine hundred sixty thousand, five hundred".