84508747 has 2 divisors, whose sum is σ = 84508748. Its totient is φ = 84508746.

The previous prime is 84508741. The next prime is 84508757. The reversal of 84508747 is 74780548.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84508747 is a prime.

It is not a weakly prime, because it can be changed into another prime (84508741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42254373 + 42254374.

It is an arithmetic number, because the mean of its divisors is an integer number (42254374).

Almost surely, 2^84508747 is an apocalyptic number.

84508747 is a deficient number, since it is larger than the sum of its proper divisors (1).

84508747 is an equidigital number, since it uses as much as digits as its factorization.

84508747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 250880, while the sum is 43.

The square root of 84508747 is about 9192.8639171914. The cubic root of 84508747 is about 438.8342886684.

The spelling of 84508747 in words is "eighty-four million, five hundred eight thousand, seven hundred forty-seven".