1005777796 has 27 divisors (see below), whose sum is σ = 1789105647. Its totient is φ = 494738400.

The previous prime is 1005777793. The next prime is 1005777827. The reversal of 1005777796 is 6977775001.

The square root of 1005777796 is 31714.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 133402500 + 872375296 = 11550^2 + 29536^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1005777791) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6406150 + ... + 6406306.

Almost surely, 2^1005777796 is an apocalyptic number.

1005777796 is the 31714-th square number.

It is an amenable number.

1005777796 is a deficient number, since it is larger than the sum of its proper divisors (783327851).

1005777796 is an equidigital number, since it uses as much as digits as its factorization.

1005777796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 648270, while the sum is 49.

The cubic root of 1005777796 is about 1001.9222346464.

Multiplying 1005777796 by its sum of digits (49), we get a square (49283112004 = 221998²).

The spelling of 1005777796 in words is "one billion, five million, seven hundred seventy-seven thousand, seven hundred ninety-six".