86362981 has 2 divisors, whose sum is σ = 86362982. Its totient is φ = 86362980.

The previous prime is 86362967. The next prime is 86363021. The reversal of 86362981 is 18926368.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79388100 + 6974881 = 8910^2 + 2641^2 .

It is a cyclic number.

It is not a de Polignac number, because 86362981 - 2⁵ = 86362949 is a prime.

It is a super-2 number, since 2×86362981² = 14917128974412722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86362901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43181490 + 43181491.

It is an arithmetic number, because the mean of its divisors is an integer number (43181491).

Almost surely, 2^86362981 is an apocalyptic number.

It is an amenable number.

86362981 is a deficient number, since it is larger than the sum of its proper divisors (1).

86362981 is an equidigital number, since it uses as much as digits as its factorization.

86362981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 43.

The square root of 86362981 is about 9293.1685124074. The cubic root of 86362981 is about 442.0206323163.

The spelling of 86362981 in words is "eighty-six million, three hundred sixty-two thousand, nine hundred eighty-one".