2630389 has 2 divisors, whose sum is σ = 2630390. Its totient is φ = 2630388.

The previous prime is 2630377. The next prime is 2630399. The reversal of 2630389 is 9830362.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1664100 + 966289 = 1290^2 + 983^2 .

It is a cyclic number.

It is not a de Polignac number, because 2630389 - 2⁵ = 2630357 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2630389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2630339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1315194 + 1315195.

It is an arithmetic number, because the mean of its divisors is an integer number (1315195).

2^2630389 is an apocalyptic number.

It is an amenable number.

2630389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2630389 is an equidigital number, since it uses as much as digits as its factorization.

2630389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 2630389 is about 1621.8474034261. The cubic root of 2630389 is about 138.0405432930.

The spelling of 2630389 in words is "two million, six hundred thirty thousand, three hundred eighty-nine".