84103427 has 2 divisors, whose sum is σ = 84103428. Its totient is φ = 84103426.

The previous prime is 84103381. The next prime is 84103429. The reversal of 84103427 is 72430148.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84103427 - 2⁶ = 84103363 is a prime.

It is a super-3 number, since 3×84103427³ (a number of 25 digits) contains 333 as substring.

Together with 84103429, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84103427.

It is not a weakly prime, because it can be changed into another prime (84103429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42051713 + 42051714.

It is an arithmetic number, because the mean of its divisors is an integer number (42051714).

Almost surely, 2^84103427 is an apocalyptic number.

84103427 is a deficient number, since it is larger than the sum of its proper divisors (1).

84103427 is an equidigital number, since it uses as much as digits as its factorization.

84103427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 84103427 is about 9170.7920595770. The cubic root of 84103427 is about 438.1315865074.

It can be divided in two parts, 84 and 103427, that multiplied together give a palindrome (8687868).

The spelling of 84103427 in words is "eighty-four million, one hundred three thousand, four hundred twenty-seven".