981359486 has 16 divisors (see below), whose sum is σ = 1487881824. Its totient is φ = 485409024.

The previous prime is 981359441. The next prime is 981359503. The reversal of 981359486 is 684953189.

981359486 = 199² + 200² + ... + 1434².

It is a Curzon number.

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, 265346 + ... + 269018.

It is an arithmetic number, because the mean of its divisors is an integer number (92992614).

Almost surely, 2^981359486 is an apocalyptic number.

981359486 is a deficient number, since it is larger than the sum of its proper divisors (506522338).

981359486 is a wasteful number, since it uses less digits than its factorization.

981359486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5075.

The product of its digits is 1866240, while the sum is 53.

The square root of 981359486 is about 31326.6577534214. The cubic root of 981359486 is about 993.7474828411.

The spelling of 981359486 in words is "nine hundred eighty-one million, three hundred fifty-nine thousand, four hundred eighty-six".