86983381 has 2 divisors, whose sum is σ = 86983382. Its totient is φ = 86983380.

The previous prime is 86983361. The next prime is 86983409. The reversal of 86983381 is 18338968.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81180100 + 5803281 = 9010^2 + 2409^2 .

It is a cyclic number.

It is not a de Polignac number, because 86983381 - 2²¹ = 84886229 is a prime.

It is a super-2 number, since 2×86983381² = 15132217140382322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86983301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43491690 + 43491691.

It is an arithmetic number, because the mean of its divisors is an integer number (43491691).

Almost surely, 2^86983381 is an apocalyptic number.

It is an amenable number.

86983381 is a deficient number, since it is larger than the sum of its proper divisors (1).

86983381 is an equidigital number, since it uses as much as digits as its factorization.

86983381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 46.

The square root of 86983381 is about 9326.4881386297. The cubic root of 86983381 is about 443.0765459740.

The spelling of 86983381 in words is "eighty-six million, nine hundred eighty-three thousand, three hundred eighty-one".