2391629 has 2 divisors, whose sum is σ = 2391630. Its totient is φ = 2391628.

The previous prime is 2391589. The next prime is 2391637. The reversal of 2391629 is 9261932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1214404 + 1177225 = 1102^2 + 1085^2 .

It is a cyclic number.

It is not a de Polignac number, because 2391629 - 2¹² = 2387533 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2391595 and 2391604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2394629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1195814 + 1195815.

It is an arithmetic number, because the mean of its divisors is an integer number (1195815).

2^2391629 is an apocalyptic number.

It is an amenable number.

2391629 is a deficient number, since it is larger than the sum of its proper divisors (1).

2391629 is an equidigital number, since it uses as much as digits as its factorization.

2391629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 32.

The square root of 2391629 is about 1546.4892498818. The cubic root of 2391629 is about 133.7307469303.

The spelling of 2391629 in words is "two million, three hundred ninety-one thousand, six hundred twenty-nine".