9991677 has 8 divisors (see below), whose sum is σ = 13336864. Its totient is φ = 6653808.

The previous prime is 9991673. The next prime is 9991691. The reversal of 9991677 is 7761999.

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

It is not a de Polignac number, because 9991677 - 2² = 9991673 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 (9991673) 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, 4203 + ... + 6135.

It is an arithmetic number, because the mean of its divisors is an integer number (1667108).

Almost surely, 2^9991677 is an apocalyptic number.

It is an amenable number.

9991677 is a deficient number, since it is larger than the sum of its proper divisors (3345187).

9991677 is a wasteful number, since it uses less digits than its factorization.

9991677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3659.

The product of its digits is 214326, while the sum is 48.

The square root of 9991677 is about 3160.9614043832. The cubic root of 9991677 is about 215.3836812132.

The spelling of 9991677 in words is "nine million, nine hundred ninety-one thousand, six hundred seventy-seven".