996677 has 6 divisors (see below), whose sum is σ = 1095654. Its totient is φ = 905960.

The previous prime is 996649. The next prime is 996689. The reversal of 996677 is 776699.

It can be written as a sum of positive squares in only one way, i.e., 894916 + 101761 = 946^2 + 319^2 .

It is not a de Polignac number, because 996677 - 2¹⁴ = 980293 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (996617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3998 + ... + 4239.

It is an arithmetic number, because the mean of its divisors is an integer number (182609).

2⁹⁹⁶⁶⁷⁷ is an apocalyptic number.

It is an amenable number.

996677 is a deficient number, since it is larger than the sum of its proper divisors (98977).

996677 is a wasteful number, since it uses less digits than its factorization.

996677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8259 (or 8248 counting only the distinct ones).

The product of its digits is 142884, while the sum is 44.

The square root of 996677 is about 998.3371174107. The cubic root of 996677 is about 99.8891104138.

It can be divided in two parts, 99 and 6677, that added together give a palindrome (6776).

The spelling of 996677 in words is "nine hundred ninety-six thousand, six hundred seventy-seven".