996777 has 6 divisors (see below), whose sum is σ = 1439802. Its totient is φ = 664512.

The previous prime is 996763. The next prime is 996781. The reversal of 996777 is 777699.

It can be written as a sum of positive squares in only one way, i.e., 992016 + 4761 = 996^2 + 69^2 .

It is not a de Polignac number, because 996777 - 2⁷ = 996649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (991777) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55368 + ... + 55385.

It is an arithmetic number, because the mean of its divisors is an integer number (239967).

2⁹⁹⁶⁷⁷⁷ is an apocalyptic number.

It is an amenable number.

996777 is a deficient number, since it is larger than the sum of its proper divisors (443025).

996777 is a wasteful number, since it uses less digits than its factorization.

996777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110759 (or 110756 counting only the distinct ones).

The product of its digits is 166698, while the sum is 45.

The square root of 996777 is about 998.3871994372. The cubic root of 996777 is about 99.8924510403.

The spelling of 996777 in words is "nine hundred ninety-six thousand, seven hundred seventy-seven".