2630729 has 2 divisors, whose sum is σ = 2630730. Its totient is φ = 2630728.

The previous prime is 2630713. The next prime is 2630741. The reversal of 2630729 is 9270362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1630729 + 1000000 = 1277^2 + 1000^2 .

It is a cyclic number.

It is not a de Polignac number, because 2630729 - 2⁴ = 2630713 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 6² + 3 + 0 + 7² + 2²¹ + 9⁶ .

It is not a weakly prime, because it can be changed into another prime (2630129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1315364 + 1315365.

It is an arithmetic number, because the mean of its divisors is an integer number (1315365).

2^2630729 is an apocalyptic number.

It is an amenable number.

2630729 is a deficient number, since it is larger than the sum of its proper divisors (1).

2630729 is an equidigital number, since it uses as much as digits as its factorization.

2630729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 2630729 is about 1621.9522187783. The cubic root of 2630729 is about 138.0464906723.

The spelling of 2630729 in words is "two million, six hundred thirty thousand, seven hundred twenty-nine".