84103381 has 2 divisors, whose sum is σ = 84103382. Its totient is φ = 84103380.

The previous prime is 84103363. The next prime is 84103427. The reversal of 84103381 is 18330148.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76212900 + 7890481 = 8730^2 + 2809^2 .

It is a cyclic number.

It is not a de Polignac number, because 84103381 - 2⁹ = 84102869 is a prime.

It is a super-2 number, since 2×84103381² = 14146757391262322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84104381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42051690 + 42051691.

It is an arithmetic number, because the mean of its divisors is an integer number (42051691).

Almost surely, 2^84103381 is an apocalyptic number.

It is an amenable number.

84103381 is a deficient number, since it is larger than the sum of its proper divisors (1).

84103381 is an equidigital number, since it uses as much as digits as its factorization.

84103381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 84103381 is about 9170.7895516144. The cubic root of 84103381 is about 438.1315066294.

The spelling of 84103381 in words is "eighty-four million, one hundred three thousand, three hundred eighty-one".