8450981 has 12 divisors (see below), whose sum is σ = 10725120. Its totient is φ = 6584760.

The previous prime is 8450969. The next prime is 8450987. The reversal of 8450981 is 1890548.

It is not a de Polignac number, because 8450981 - 2¹⁰ = 8449957 is a prime.

It is a super-2 number, since 2×8450981² = 142838159724722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8450987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7301 + ... + 8378.

It is an arithmetic number, because the mean of its divisors is an integer number (893760).

Almost surely, 2^8450981 is an apocalyptic number.

It is an amenable number.

8450981 is a deficient number, since it is larger than the sum of its proper divisors (2274139).

8450981 is a wasteful number, since it uses less digits than its factorization.

8450981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15704 (or 15697 counting only the distinct ones).

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

The square root of 8450981 is about 2907.0571029823. The cubic root of 8450981 is about 203.6896874441.

The spelling of 8450981 in words is "eight million, four hundred fifty thousand, nine hundred eighty-one".