2827690945 has 4 divisors (see below), whose sum is σ = 3393229140. Its totient is φ = 2262152752.

The previous prime is 2827690897. The next prime is 2827690961. The reversal of 2827690945 is 5490967282.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1021185936 + 1806505009 = 31956^2 + 42503^2 .

It is a cyclic number.

It is not a de Polignac number, because 2827690945 - 2¹⁷ = 2827559873 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2827690892 and 2827690901.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282769090 + ... + 282769099.

It is an arithmetic number, because the mean of its divisors is an integer number (848307285).

Almost surely, 2^2827690945 is an apocalyptic number.

It is an amenable number.

2827690945 is a deficient number, since it is larger than the sum of its proper divisors (565538195).

2827690945 is an equidigital number, since it uses as much as digits as its factorization.

2827690945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565538194.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The square root of 2827690945 is about 53176.0373194543. The cubic root of 2827690945 is about 1414.0908551021.

The spelling of 2827690945 in words is "two billion, eight hundred twenty-seven million, six hundred ninety thousand, nine hundred forty-five".