84869655 has 64 divisors (see below), whose sum is σ = 154828800. Its totient is φ = 39384576.

The previous prime is 84869623. The next prime is 84869657. The reversal of 84869655 is 55696848.

It is not a de Polignac number, because 84869655 - 2⁵ = 84869623 is a prime.

Its product of digits (2073600) is a multiple of the sum of its prime divisors (320).

It is a junction number, because it is equal to n+sod(n) for n = 84869598 and 84869607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84869657) 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 in 63 ways as a sum of consecutive naturals, for example, 569521 + ... + 569669.

It is an arithmetic number, because the mean of its divisors is an integer number (2419200).

Almost surely, 2^84869655 is an apocalyptic number.

84869655 is a deficient number, since it is larger than the sum of its proper divisors (69959145).

84869655 is a wasteful number, since it uses less digits than its factorization.

84869655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320.

The product of its digits is 2073600, while the sum is 51.

The square root of 84869655 is about 9212.4727950752. The cubic root of 84869655 is about 439.4581052708.

The spelling of 84869655 in words is "eighty-four million, eight hundred sixty-nine thousand, six hundred fifty-five".