8226981 has 64 divisors (see below), whose sum is σ = 15360000. Its totient is φ = 4245696.

The previous prime is 8226973. The next prime is 8226989. The reversal of 8226981 is 1896228.

It is an interprime number because it is at equal distance from previous prime (8226973) and next prime (8226989).

It is not a de Polignac number, because 8226981 - 2³ = 8226973 is a prime.

It is a super-2 number, since 2×8226981² = 135366432748722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8226989) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 104100 + ... + 104178.

It is an arithmetic number, because the mean of its divisors is an integer number (240000).

Almost surely, 2^8226981 is an apocalyptic number.

It is an amenable number.

8226981 is a deficient number, since it is larger than the sum of its proper divisors (7133019).

8226981 is a wasteful number, since it uses less digits than its factorization.

8226981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 137 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 8226981 is about 2868.2714306704. The cubic root of 8226981 is about 201.8738960663.

It can be divided in two parts, 8 and 226981, that multiplied together give a cube (1815848 = 122³).

The spelling of 8226981 in words is "eight million, two hundred twenty-six thousand, nine hundred eighty-one".