84785642 has 8 divisors (see below), whose sum is σ = 127294500. Its totient is φ = 42354144.

The previous prime is 84785639. The next prime is 84785653. The reversal of 84785642 is 24658748.

It can be written as a sum of positive squares in 2 ways, for example, as 74666881 + 10118761 = 8641^2 + 3181^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 84785593 and 84785602.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16517 + ... + 21032.

Almost surely, 2^84785642 is an apocalyptic number.

84785642 is a deficient number, since it is larger than the sum of its proper divisors (42508858).

84785642 is a wasteful number, since it uses less digits than its factorization.

84785642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38680.

The product of its digits is 430080, while the sum is 44.

The square root of 84785642 is about 9207.9119239923. The cubic root of 84785642 is about 439.3130499582.

The spelling of 84785642 in words is "eighty-four million, seven hundred eighty-five thousand, six hundred forty-two".