2789629 has 2 divisors, whose sum is σ = 2789630. Its totient is φ = 2789628.

The previous prime is 2789627. The next prime is 2789669. The reversal of 2789629 is 9269872.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2788900 + 729 = 1670^2 + 27^2 .

It is a cyclic number.

It is not a de Polignac number, because 2789629 - 2¹ = 2789627 is a prime.

Together with 2789627, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2789621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1394814 + 1394815.

It is an arithmetic number, because the mean of its divisors is an integer number (1394815).

2^2789629 is an apocalyptic number.

It is an amenable number.

2789629 is a deficient number, since it is larger than the sum of its proper divisors (1).

2789629 is an equidigital number, since it uses as much as digits as its factorization.

2789629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 43.

The square root of 2789629 is about 1670.2182492118. The cubic root of 2789629 is about 140.7717414073.

The spelling of 2789629 in words is "two million, seven hundred eighty-nine thousand, six hundred twenty-nine".