8010981 has 40 divisors (see below), whose sum is σ = 13462944. Its totient is φ = 4723920.

The previous prime is 8010973. The next prime is 8011007. The reversal of 8010981 is 1890108.

It is not a de Polignac number, because 8010981 - 2³ = 8010973 is a prime.

It is a super-3 number, since 3×8010981³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8010901) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 216495 + ... + 216531.

Almost surely, 2^8010981 is an apocalyptic number.

8010981 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

8010981 is a deficient number, since it is larger than the sum of its proper divisors (5451963).

8010981 is an frugal number, since it uses more digits than its factorization.

8010981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The square root of 8010981 is about 2830.3676439643. The cubic root of 8010981 is about 200.0914664964.

The spelling of 8010981 in words is "eight million, ten thousand, nine hundred eighty-one".