2606283721 has 2 divisors, whose sum is σ = 2606283722. Its totient is φ = 2606283720.

The previous prime is 2606283653. The next prime is 2606283727. The reversal of 2606283721 is 1273826062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2602122121 + 4161600 = 51011^2 + 2040^2 .

It is a cyclic number.

It is not a de Polignac number, because 2606283721 - 2⁷ = 2606283593 is a prime.

It is not a weakly prime, because it can be changed into another prime (2606283727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1303141860 + 1303141861.

It is an arithmetic number, because the mean of its divisors is an integer number (1303141861).

Almost surely, 2^2606283721 is an apocalyptic number.

It is an amenable number.

2606283721 is a deficient number, since it is larger than the sum of its proper divisors (1).

2606283721 is an equidigital number, since it uses as much as digits as its factorization.

2606283721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 2606283721 is about 51051.7749054820. The cubic root of 2606283721 is about 1376.1757385582.

The spelling of 2606283721 in words is "two billion, six hundred six million, two hundred eighty-three thousand, seven hundred twenty-one".