84620017 has 6 divisors (see below), whose sum is σ = 85187238. Its totient is φ = 84056544.

The previous prime is 84619979. The next prime is 84620047. The reversal of 84620017 is 71002648.

It can be written as a sum of positive squares in 3 ways, for example, as 732736 + 83887281 = 856^2 + 9159^2 .

It is not a de Polignac number, because 84620017 - 2⁷ = 84619889 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84620047) 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, 22933 + ... + 26365.

It is an arithmetic number, because the mean of its divisors is an integer number (14197873).

Almost surely, 2^84620017 is an apocalyptic number.

It is an amenable number.

84620017 is a deficient number, since it is larger than the sum of its proper divisors (567221).

84620017 is an equidigital number, since it uses as much as digits as its factorization.

84620017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3747 (or 3590 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 84620017 is about 9198.9139032823. The cubic root of 84620017 is about 439.0268039528.

The spelling of 84620017 in words is "eighty-four million, six hundred twenty thousand, seventeen".