80286981 has 16 divisors (see below), whose sum is σ = 108144960. Its totient is φ = 52980480.

The previous prime is 80286959. The next prime is 80286991. The reversal of 80286981 is 18968208.

It is not a de Polignac number, because 80286981 - 2⁶ = 80286917 is a prime.

It is a super-3 number, since 3×80286981³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80286901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211650 + ... + 212028.

It is an arithmetic number, because the mean of its divisors is an integer number (6759060).

Almost surely, 2^80286981 is an apocalyptic number.

It is an amenable number.

80286981 is a deficient number, since it is larger than the sum of its proper divisors (27857979).

80286981 is a wasteful number, since it uses less digits than its factorization.

80286981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916.

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 80286981 is about 8960.3002739864. The cubic root of 80286981 is about 431.4015579885.

The spelling of 80286981 in words is "eighty million, two hundred eighty-six thousand, nine hundred eighty-one".