9972687 has 8 divisors (see below), whose sum is σ = 13316400. Its totient is φ = 6638720.

The previous prime is 9972679. The next prime is 9972691. The reversal of 9972687 is 7862799.

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 9972687 - 2³ = 9972679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9972617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439 + ... + 4487.

It is an arithmetic number, because the mean of its divisors is an integer number (1664550).

Almost surely, 2^9972687 is an apocalyptic number.

9972687 is a deficient number, since it is larger than the sum of its proper divisors (3343713).

9972687 is a wasteful number, since it uses less digits than its factorization.

9972687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4873.

The product of its digits is 381024, while the sum is 48.

The square root of 9972687 is about 3157.9561428240. The cubic root of 9972687 is about 215.2471432374.

The spelling of 9972687 in words is "nine million, nine hundred seventy-two thousand, six hundred eighty-seven".