84214567 has 2 divisors, whose sum is σ = 84214568. Its totient is φ = 84214566.

The previous prime is 84214561. The next prime is 84214609. The reversal of 84214567 is 76541248.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84214567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84214561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42107283 + 42107284.

It is an arithmetic number, because the mean of its divisors is an integer number (42107284).

Almost surely, 2^84214567 is an apocalyptic number.

84214567 is a deficient number, since it is larger than the sum of its proper divisors (1).

84214567 is an equidigital number, since it uses as much as digits as its factorization.

84214567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53760, while the sum is 37.

The square root of 84214567 is about 9176.8495138582. The cubic root of 84214567 is about 438.3244938709.

The spelling of 84214567 in words is "eighty-four million, two hundred fourteen thousand, five hundred sixty-seven".