2820172633 has 2 divisors, whose sum is σ = 2820172634. Its totient is φ = 2820172632.

The previous prime is 2820172513. The next prime is 2820172681. The reversal of 2820172633 is 3362710282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1868573529 + 951599104 = 43227^2 + 30848^2 .

It is a cyclic number.

It is not a de Polignac number, because 2820172633 - 2¹³ = 2820164441 is a prime.

It is not a weakly prime, because it can be changed into another prime (2820872633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1410086316 + 1410086317.

It is an arithmetic number, because the mean of its divisors is an integer number (1410086317).

Almost surely, 2^2820172633 is an apocalyptic number.

It is an amenable number.

2820172633 is a deficient number, since it is larger than the sum of its proper divisors (1).

2820172633 is an equidigital number, since it uses as much as digits as its factorization.

2820172633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 2820172633 is about 53105.2975982623. The cubic root of 2820172633 is about 1412.8364732447.

The spelling of 2820172633 in words is "two billion, eight hundred twenty million, one hundred seventy-two thousand, six hundred thirty-three".