8485981 has 4 divisors (see below), whose sum is σ = 9698272. Its totient is φ = 7273692.

The previous prime is 8485979. The next prime is 8486039. The reversal of 8485981 is 1895848.

8485981 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8485981 - 2¹ = 8485979 is a prime.

It is a super-2 number, since 2×8485981² = 144023747064722, which contains 22 as substring.

It is a Duffinian number.

8485981 is strictly pandigital in base 8.

8485981 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8485931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606135 + ... + 606148.

It is an arithmetic number, because the mean of its divisors is an integer number (2424568).

Almost surely, 2^8485981 is an apocalyptic number.

It is an amenable number.

8485981 is a deficient number, since it is larger than the sum of its proper divisors (1212291).

8485981 is a wasteful number, since it uses less digits than its factorization.

8485981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212290.

The product of its digits is 92160, while the sum is 43.

The square root of 8485981 is about 2913.0707166150. The cubic root of 8485981 is about 203.9704958612.

The spelling of 8485981 in words is "eight million, four hundred eighty-five thousand, nine hundred eighty-one".