985402647 has 6 divisors (see below), whose sum is σ = 1423359392. Its totient is φ = 656935092.

The previous prime is 985402631. The next prime is 985402661. The reversal of 985402647 is 746204589.

It is a happy number.

It is not a de Polignac number, because 985402647 - 2⁴ = 985402631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985404647) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54744583 + ... + 54744600.

Almost surely, 2^985402647 is an apocalyptic number.

985402647 is a deficient number, since it is larger than the sum of its proper divisors (437956745).

985402647 is a wasteful number, since it uses less digits than its factorization.

985402647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109489189 (or 109489186 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 985402647 is about 31391.1236976315. The cubic root of 985402647 is about 995.1103459181.

It can be divided in two parts, 985402 and 647, that added together give a square (986049 = 993²).

The spelling of 985402647 in words is "nine hundred eighty-five million, four hundred two thousand, six hundred forty-seven".