9977242647 has 8 divisors (see below), whose sum is σ = 13732119040. Its totient is φ = 6436930680.

The previous prime is 9977242609. The next prime is 9977242651. The reversal of 9977242647 is 7462427799.

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

It is not a de Polignac number, because 9977242647 - 2¹¹ = 9977240599 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 (9977242607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53640997 + ... + 53641182.

It is an arithmetic number, because the mean of its divisors is an integer number (1716514880).

Almost surely, 2^9977242647 is an apocalyptic number.

9977242647 is a deficient number, since it is larger than the sum of its proper divisors (3754876393).

9977242647 is a wasteful number, since it uses less digits than its factorization.

9977242647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107282213.

The product of its digits is 10668672, while the sum is 57.

The square root of 9977242647 is about 99886.1484240933. The cubic root of 9977242647 is about 2152.7991410196.

The spelling of 9977242647 in words is "nine billion, nine hundred seventy-seven million, two hundred forty-two thousand, six hundred forty-seven".