985662497 has 4 divisors (see below), whose sum is σ = 986724420. Its totient is φ = 984600576.

The previous prime is 985662481. The next prime is 985662523. The reversal of 985662497 is 794266589.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 794266589 = 1259 ⋅630871.

It can be written as a sum of positive squares in 2 ways, for example, as 153859216 + 831803281 = 12404^2 + 28841^2 .

It is a cyclic number.

It is not a de Polignac number, because 985662497 - 2⁴ = 985662481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (985662407) 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, 529568 + ... + 531425.

It is an arithmetic number, because the mean of its divisors is an integer number (246681105).

Almost surely, 2^985662497 is an apocalyptic number.

It is an amenable number.

985662497 is a deficient number, since it is larger than the sum of its proper divisors (1061923).

985662497 is a wasteful number, since it uses less digits than its factorization.

985662497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061922.

The product of its digits is 6531840, while the sum is 56.

The square root of 985662497 is about 31395.2623336707. The cubic root of 985662497 is about 995.1978082018.

The spelling of 985662497 in words is "nine hundred eighty-five million, six hundred sixty-two thousand, four hundred ninety-seven".