996773647 has 2 divisors, whose sum is σ = 996773648. Its totient is φ = 996773646.

The previous prime is 996773641. The next prime is 996773683. The reversal of 996773647 is 746377699.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 996773647 - 2¹¹ = 996771599 is a prime.

It is a super-3 number, since 3×996773647³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 996773591 and 996773600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (996773641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498386823 + 498386824.

It is an arithmetic number, because the mean of its divisors is an integer number (498386824).

Almost surely, 2^996773647 is an apocalyptic number.

996773647 is a deficient number, since it is larger than the sum of its proper divisors (1).

996773647 is an equidigital number, since it uses as much as digits as its factorization.

996773647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12002256, while the sum is 58.

The square root of 996773647 is about 31571.7222685111. The cubic root of 996773647 is about 998.9233903276.

The spelling of 996773647 in words is "nine hundred ninety-six million, seven hundred seventy-three thousand, six hundred forty-seven".