84069747 has 6 divisors (see below), whose sum is σ = 121434092. Its totient is φ = 56046492.

The previous prime is 84069731. The next prime is 84069757. The reversal of 84069747 is 74796048.

It is not a de Polignac number, because 84069747 - 2⁴ = 84069731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84069757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4670533 + ... + 4670550.

Almost surely, 2^84069747 is an apocalyptic number.

84069747 is a deficient number, since it is larger than the sum of its proper divisors (37364345).

84069747 is a wasteful number, since it uses less digits than its factorization.

84069747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9341089 (or 9341086 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 84069747 is about 9168.9556111915. The cubic root of 84069747 is about 438.0730940751.

The spelling of 84069747 in words is "eighty-four million, sixty-nine thousand, seven hundred forty-seven".