11421629 has 2 divisors, whose sum is σ = 11421630. Its totient is φ = 11421628.

The previous prime is 11421601. The next prime is 11421661. The reversal of 11421629 is 92612411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10824100 + 597529 = 3290^2 + 773^2 .

It is a cyclic number.

It is not a de Polignac number, because 11421629 - 2¹² = 11417533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11421598 and 11421607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11421689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5710814 + 5710815.

It is an arithmetic number, because the mean of its divisors is an integer number (5710815).

Almost surely, 2^11421629 is an apocalyptic number.

It is an amenable number.

11421629 is a deficient number, since it is larger than the sum of its proper divisors (1).

11421629 is an equidigital number, since it uses as much as digits as its factorization.

11421629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 26.

The square root of 11421629 is about 3379.5900638983. The cubic root of 11421629 is about 225.2039566266.

The spelling of 11421629 in words is "eleven million, four hundred twenty-one thousand, six hundred twenty-nine".