84842685 has 12 divisors (see below), whose sum is σ = 147060732. Its totient is φ = 45249408.

The previous prime is 84842669. The next prime is 84842689. The reversal of 84842685 is 58624848.

It can be written as a sum of positive squares in 2 ways, for example, as 14584761 + 70257924 = 3819^2 + 8382^2 .

It is not a de Polignac number, because 84842685 - 2⁴ = 84842669 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1885393 = 84842685 / (8 + 4 + 8 + 4 + 2 + 6 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 84842685.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84842689) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 942652 + ... + 942741.

It is an arithmetic number, because the mean of its divisors is an integer number (12255061).

Almost surely, 2^84842685 is an apocalyptic number.

It is an amenable number.

84842685 is a deficient number, since it is larger than the sum of its proper divisors (62218047).

84842685 is a wasteful number, since it uses less digits than its factorization.

84842685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1885404 (or 1885401 counting only the distinct ones).

The product of its digits is 491520, while the sum is 45.

The square root of 84842685 is about 9211.0089023950. The cubic root of 84842685 is about 439.4115497978.

The spelling of 84842685 in words is "eighty-four million, eight hundred forty-two thousand, six hundred eighty-five".