84215347 has 2 divisors, whose sum is σ = 84215348. Its totient is φ = 84215346.

The previous prime is 84215317. The next prime is 84215377. The reversal of 84215347 is 74351248.

It is a balanced prime because it is at equal distance from previous prime (84215317) and next prime (84215377).

It is a cyclic number.

It is not a de Polignac number, because 84215347 - 2¹¹ = 84213299 is a prime.

It is not a weakly prime, because it can be changed into another prime (84215317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42107673 + 42107674.

It is an arithmetic number, because the mean of its divisors is an integer number (42107674).

Almost surely, 2^84215347 is an apocalyptic number.

84215347 is a deficient number, since it is larger than the sum of its proper divisors (1).

84215347 is an equidigital number, since it uses as much as digits as its factorization.

84215347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 34.

The square root of 84215347 is about 9176.8920120049. The cubic root of 84215347 is about 438.3258471287.

The spelling of 84215347 in words is "eighty-four million, two hundred fifteen thousand, three hundred forty-seven".