9971877 has 8 divisors (see below), whose sum is σ = 14078016. Its totient is φ = 6256832.

The previous prime is 9971861. The next prime is 9971881. The reversal of 9971877 is 7781799.

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 9971877 - 2⁴ = 9971861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9971807) 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, 97713 + ... + 97814.

It is an arithmetic number, because the mean of its divisors is an integer number (1759752).

Almost surely, 2^9971877 is an apocalyptic number.

It is an amenable number.

9971877 is a deficient number, since it is larger than the sum of its proper divisors (4106139).

9971877 is a wasteful number, since it uses less digits than its factorization.

9971877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195547.

The product of its digits is 222264, while the sum is 48.

The square root of 9971877 is about 3157.8278927136. The cubic root of 9971877 is about 215.2413154899.

The spelling of 9971877 in words is "nine million, nine hundred seventy-one thousand, eight hundred seventy-seven".