9900777 has 8 divisors (see below), whose sum is σ = 13225216. Its totient is φ = 6588432.

The previous prime is 9900773. The next prime is 9900799. The reversal of 9900777 is 7770099.

9900777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 9900777 - 2² = 9900773 is a prime.

It is a Duffinian number.

9900777 is a lucky number.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (9900773) 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, 898 + ... + 4539.

It is an arithmetic number, because the mean of its divisors is an integer number (1653152).

Almost surely, 2^9900777 is an apocalyptic number.

It is an amenable number.

9900777 is a deficient number, since it is larger than the sum of its proper divisors (3324439).

9900777 is a wasteful number, since it uses less digits than its factorization.

9900777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6047.

The product of its (nonzero) digits is 27783, while the sum is 39.

The square root of 9900777 is about 3146.5500154932. The cubic root of 9900777 is about 214.7285342535.

The spelling of 9900777 in words is "nine million, nine hundred thousand, seven hundred seventy-seven".