9977699 has 4 divisors (see below), whose sum is σ = 10411536. Its totient is φ = 9543864.

The previous prime is 9977683. The next prime is 9977741. The reversal of 9977699 is 9967799.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9977699 - 2⁴ = 9977683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9977609) 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 3 ways as a sum of consecutive naturals, for example, 216884 + ... + 216929.

It is an arithmetic number, because the mean of its divisors is an integer number (2602884).

Almost surely, 2^9977699 is an apocalyptic number.

9977699 is a deficient number, since it is larger than the sum of its proper divisors (433837).

9977699 is a wasteful number, since it uses less digits than its factorization.

9977699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433836.

The product of its digits is 1928934, while the sum is 56.

The square root of 9977699 is about 3158.7495943807. The cubic root of 9977699 is about 215.2831963093.

The spelling of 9977699 in words is "nine million, nine hundred seventy-seven thousand, six hundred ninety-nine".