84739667 has 2 divisors, whose sum is σ = 84739668. Its totient is φ = 84739666.

The previous prime is 84739663. The next prime is 84739673. The reversal of 84739667 is 76693748.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84739667 - 2² = 84739663 is a prime.

It is a super-2 number, since 2×84739667² = 14361622326541778, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (84739663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42369833 + 42369834.

It is an arithmetic number, because the mean of its divisors is an integer number (42369834).

Almost surely, 2^84739667 is an apocalyptic number.

84739667 is a deficient number, since it is larger than the sum of its proper divisors (1).

84739667 is an equidigital number, since it uses as much as digits as its factorization.

84739667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1524096, while the sum is 50.

The square root of 84739667 is about 9205.4150911298. The cubic root of 84739667 is about 439.2336297923.

The spelling of 84739667 in words is "eighty-four million, seven hundred thirty-nine thousand, six hundred sixty-seven".