84305387 has 2 divisors, whose sum is σ = 84305388. Its totient is φ = 84305386.

The previous prime is 84305383. The next prime is 84305401. The reversal of 84305387 is 78350348.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84305387 - 2² = 84305383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84305387.

It is not a weakly prime, because it can be changed into another prime (84305381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42152693 + 42152694.

It is an arithmetic number, because the mean of its divisors is an integer number (42152694).

Almost surely, 2^84305387 is an apocalyptic number.

84305387 is a deficient number, since it is larger than the sum of its proper divisors (1).

84305387 is an equidigital number, since it uses as much as digits as its factorization.

84305387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 84305387 is about 9181.7965017746. The cubic root of 84305387 is about 438.4820055310.

The spelling of 84305387 in words is "eighty-four million, three hundred five thousand, three hundred eighty-seven".