981485 has 8 divisors (see below), whose sum is σ = 1194360. Its totient is φ = 774144.

The previous prime is 981481. The next prime is 981493. The reversal of 981485 is 584189.

It can be written as a sum of positive squares in 4 ways, for example, as 3364 + 978121 = 58^2 + 989^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 981485 - 2² = 981481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 980 + ... + 1709.

It is an arithmetic number, because the mean of its divisors is an integer number (149295).

2⁹⁸¹⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

981485 is a deficient number, since it is larger than the sum of its proper divisors (212875).

981485 is a wasteful number, since it uses less digits than its factorization.

981485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2767.

The product of its digits is 11520, while the sum is 35.

The square root of 981485 is about 990.6992480062. The cubic root of 981485 is about 99.3789847169.

It can be divided in two parts, 98 and 1485, that multiplied together give a triangular number (145530 = T₅₃₉).

The spelling of 981485 in words is "nine hundred eighty-one thousand, four hundred eighty-five".