84052681 has 2 divisors, whose sum is σ = 84052682. Its totient is φ = 84052680.

The previous prime is 84052679. The next prime is 84052691. The reversal of 84052681 is 18625048.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56385081 + 27667600 = 7509^2 + 5260^2 .

It is a cyclic number.

It is not a de Polignac number, because 84052681 - 2¹ = 84052679 is a prime.

It is a super-2 number, since 2×84052681² = 14129706366575522, which contains 22 as substring.

Together with 84052679, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (84052691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42026340 + 42026341.

It is an arithmetic number, because the mean of its divisors is an integer number (42026341).

Almost surely, 2^84052681 is an apocalyptic number.

It is an amenable number.

84052681 is a deficient number, since it is larger than the sum of its proper divisors (1).

84052681 is an equidigital number, since it uses as much as digits as its factorization.

84052681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 84052681 is about 9168.0249236136. The cubic root of 84052681 is about 438.0434493986.

The spelling of 84052681 in words is "eighty-four million, fifty-two thousand, six hundred eighty-one".