1027823641 has 4 divisors (see below), whose sum is σ = 1106887012. Its totient is φ = 948760272.

The previous prime is 1027823603. The next prime is 1027823651. The reversal of 1027823641 is 1463287201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1463287201 = 787 ⋅1859323.

It can be written as a sum of positive squares in 2 ways, for example, as 77951241 + 949872400 = 8829^2 + 30820^2 .

It is a cyclic number.

It is not a de Polignac number, because 1027823641 - 2¹⁵ = 1027790873 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1027823597 and 1027823606.

It is not an unprimeable number, because it can be changed into a prime (1027823651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39531666 + ... + 39531691.

It is an arithmetic number, because the mean of its divisors is an integer number (276721753).

Almost surely, 2^1027823641 is an apocalyptic number.

It is an amenable number.

1027823641 is a deficient number, since it is larger than the sum of its proper divisors (79063371).

1027823641 is an equidigital number, since it uses as much as digits as its factorization.

1027823641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79063370.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 1027823641 is about 32059.6887227559. The cubic root of 1027823641 is about 1009.1898352253.

The spelling of 1027823641 in words is "one billion, twenty-seven million, eight hundred twenty-three thousand, six hundred forty-one".