8742985 has 8 divisors (see below), whose sum is σ = 10508040. Its totient is φ = 6983424.

The previous prime is 8742977. The next prime is 8742997. The reversal of 8742985 is 5892478.

It can be written as a sum of positive squares in 4 ways, for example, as 327184 + 8415801 = 572^2 + 2901^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 8742985 - 2³ = 8742977 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4179 + ... + 5911.

It is an arithmetic number, because the mean of its divisors is an integer number (1313505).

Almost surely, 2^8742985 is an apocalyptic number.

It is an amenable number.

8742985 is a deficient number, since it is larger than the sum of its proper divisors (1765055).

8742985 is a wasteful number, since it uses less digits than its factorization.

8742985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2747.

The product of its digits is 161280, while the sum is 43.

The square root of 8742985 is about 2956.8539023766. The cubic root of 8742985 is about 206.0091820459.

The spelling of 8742985 in words is "eight million, seven hundred forty-two thousand, nine hundred eighty-five".