985097387 has 4 divisors (see below), whose sum is σ = 990540096. Its totient is φ = 979654680.

The previous prime is 985097329. The next prime is 985097401. The reversal of 985097387 is 783790589.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 783790589 = 67 ⋅11698367.

It is a cyclic number.

It is not a de Polignac number, because 985097387 - 2⁸ = 985097131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (985097327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2721083 + ... + 2721444.

It is an arithmetic number, because the mean of its divisors is an integer number (247635024).

Almost surely, 2^985097387 is an apocalyptic number.

985097387 is a deficient number, since it is larger than the sum of its proper divisors (5442709).

985097387 is a wasteful number, since it uses less digits than its factorization.

985097387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5442708.

The product of its (nonzero) digits is 3810240, while the sum is 56.

The square root of 985097387 is about 31386.2611185213. The cubic root of 985097387 is about 995.0075795488.

The spelling of 985097387 in words is "nine hundred eighty-five million, ninety-seven thousand, three hundred eighty-seven".