84009347 has 2 divisors, whose sum is σ = 84009348. Its totient is φ = 84009346.

The previous prime is 84009307. The next prime is 84009377. The reversal of 84009347 is 74390048.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84009347 - 2¹⁴ = 83992963 is a prime.

It is not a weakly prime, because it can be changed into another prime (84009307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42004673 + 42004674.

It is an arithmetic number, because the mean of its divisors is an integer number (42004674).

Almost surely, 2^84009347 is an apocalyptic number.

84009347 is a deficient number, since it is larger than the sum of its proper divisors (1).

84009347 is an equidigital number, since it uses as much as digits as its factorization.

84009347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 84009347 is about 9165.6612963823. The cubic root of 84009347 is about 437.9681575789.

The spelling of 84009347 in words is "eighty-four million, nine thousand, three hundred forty-seven".