84327479 has 2 divisors, whose sum is σ = 84327480. Its totient is φ = 84327478.

The previous prime is 84327469. The next prime is 84327517. The reversal of 84327479 is 97472348.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84327479 - 2¹⁶ = 84261943 is a prime.

It is a super-2 number, since 2×84327479² = 14222247428990882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84327469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42163739 + 42163740.

It is an arithmetic number, because the mean of its divisors is an integer number (42163740).

Almost surely, 2^84327479 is an apocalyptic number.

84327479 is a deficient number, since it is larger than the sum of its proper divisors (1).

84327479 is an equidigital number, since it uses as much as digits as its factorization.

84327479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338688, while the sum is 44.

The square root of 84327479 is about 9182.9994555156. Note that the first 3 decimals coincide. The cubic root of 84327479 is about 438.5203031962.

The spelling of 84327479 in words is "eighty-four million, three hundred twenty-seven thousand, four hundred seventy-nine".