84167047 has 2 divisors, whose sum is σ = 84167048. Its totient is φ = 84167046.

The previous prime is 84167003. The next prime is 84167059. The reversal of 84167047 is 74076148.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84167047 - 2⁷ = 84166919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84166997 and 84167015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84167147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42083523 + 42083524.

It is an arithmetic number, because the mean of its divisors is an integer number (42083524).

Almost surely, 2^84167047 is an apocalyptic number.

84167047 is a deficient number, since it is larger than the sum of its proper divisors (1).

84167047 is an equidigital number, since it uses as much as digits as its factorization.

84167047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 84167047 is about 9174.2600246559. The cubic root of 84167047 is about 438.2420334776.

The spelling of 84167047 in words is "eighty-four million, one hundred sixty-seven thousand, forty-seven".