84471319 has 2 divisors, whose sum is σ = 84471320. Its totient is φ = 84471318.

The previous prime is 84471313. The next prime is 84471337. The reversal of 84471319 is 91317448.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84471319 - 2²¹ = 82374167 is a prime.

It is a super-2 number, since 2×84471319² = 14270807467199522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84471313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42235659 + 42235660.

It is an arithmetic number, because the mean of its divisors is an integer number (42235660).

Almost surely, 2^84471319 is an apocalyptic number.

84471319 is a deficient number, since it is larger than the sum of its proper divisors (1).

84471319 is an equidigital number, since it uses as much as digits as its factorization.

84471319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 37.

The square root of 84471319 is about 9190.8279822876. The cubic root of 84471319 is about 438.7694941325.

The spelling of 84471319 in words is "eighty-four million, four hundred seventy-one thousand, three hundred nineteen".